This is an evidence-led recommendation list, not an official developer tier list. Exact numerical comparisons are avoided where a current official stat sheet or patch history could not be verified.
Fast answer
The answer before the background
For a broadly useful loadout, start with one reliable area-damage tower, one control tower, one economy or utility card, and one flexible hero. Crossbow Tower is a strong general-purpose damage pick; Slowdown Tower helps stabilize leaks and bosses; Mana Tower improves resource flow and spell access; and Necromancer Tower adds persistent battlefield pressure. Among heroes, Valorius is a strong support choice because he increases nearby friendly-unit damage, while Ruby offers splash damage, Frostbeard supplies aura-based slowing, Oracle handles invisible enemies, and Ace or Black Jack can help with mana generation. These are recommendations, not official rankings: map layout, enemy resistances, card level, rarity, and affinity can change the best choice.
How to read the list
What makes a card worth upgrading?
The most useful card is not always the one with the highest displayed damage. A good long-term upgrade solves more than one problem, works across several map layouts, and remains useful when enemies gain health or resistances. I weigh four criteria: reliable output, battlefield control, resource value, and flexibility.
Towers are fixed to predetermined tower spots, while heroes can be placed and moved around the battlefield. Heroes can also faint and need time to revive, so a hero with a valuable aura or utility effect may still carry risk when used aggressively. The community reference lists four tower rarities and describes tower upgrades as battle-specific improvements, separate from permanent card upgrading.
- S tier means a dependable investment for many campaign situations.
- A tier means strong and often excellent, but more dependent on map, enemy type, or team composition.
- B tier means useful when the stage or mode specifically rewards its role.
- Upgrade value assumes you can actually level the card; an underleveled S-tier card may lose to a developed A-tier card.
| Tier | Best use | Typical trade-off |
|---|---|---|
| S | Flexible damage, control, or economy | Usually competes for a core deck slot |
| A | Specialized damage, support, or enemy counter | Needs the right map or partner |
| B | Niche events, affinity checks, or specific enemies | Less reliable as a blind pick |
The listed abilities and card roles come from the indexed card reference. The S, A, and B placements are editorial recommendations based on those roles, not published in-game rankings.
Tower rankings
Best towers for a general campaign deck
S tier recommendations: Crossbow Tower, Slowdown Tower, and Mana Tower. Crossbow Tower is described as firing explosive bolts, with upgrades for damage and blast radius, giving it dependable wave-clearing value. Slowdown Tower provides control through holding or delaying enemies, which can multiply the value of every other tower. Mana Tower does not compete for damage, but its upgrades improve mana production and reduce spell-card cooldowns, making it a strategic investment rather than a damage pick.
A tier recommendations: Rocket Tower, Mortar Tower, Lightning Tower, Necromancer Tower, Well of Souls, Storm Tower, and Poison Tower. These cards cover splash damage, chaining, summoned pressure, range, or damage-over-time roles. They are excellent when their attack pattern matches the route and enemy density, but less universally safe than a basic explosive tower plus control.
B tier includes highly situational options such as Volcano Tower, which the reference specifically associates with extra damage to Minotaurs, and cards whose value depends heavily on a particular enemy, event, or affinity. That does not make them bad; it means they should usually follow a flexible core in upgrade priority.
- Use Crossbow Tower when enemies bunch together or the map gives it a long firing lane.
- Add Slowdown Tower when fast enemies, leaks, or boss timing are the main problem.
- Use Mana Tower when your strategy depends on frequent spells or expensive upgrades.
- Choose Lightning, Storm, or Poison when the stage rewards chaining, range, or resistance-aware damage.
- Keep a specialized counter only when the upcoming stage actually benefits from it.
| Priority | Tower | Why it earns the slot | Main drawback |
|---|---|---|---|
| S | Crossbow Tower | Explosive damage with blast-radius scaling | Needs suitable placement and investment |
| S | Slowdown Tower | Control improves the whole defense | Lower direct damage |
| S | Mana Tower | More mana and shorter spell cooldowns | Consumes a tower slot without attacking normally |
| A | Necromancer Tower | Adds units and can improve their health, damage, and range | Needs time and space to build value |
| A | Lightning Tower | Chain attacks can punish grouped enemies | Less impressive against spread-out targets |
| A | Poison Tower | Useful damage-over-time and penetration options | Can be checked by resistance |
The source pages describe abilities and upgrade effects, but they do not provide a current, official performance ranking. Treat this as a starting order for testing, not a guarantee for every map.
Hero rankings
Best heroes by job, not by hype
Valorius is the clearest general support recommendation because his listed special skill increases the damage of friendly units within range. He is especially attractive when you can cluster several important towers or when a stage has a long central defense area. The trade-off is positional: his value falls when towers are spread out or when he must be moved constantly.
Ruby is a strong damage recommendation for crowded waves because her hits cause splash area damage. Frostbeard is a control option whose aura slows nearby enemies, while Oracle is a counter-pick for stages containing invisible enemies. Ace and Black Jack are economy-oriented choices: the reference lists mana generation from kills for Ace and mana generation for Black Jack.
Other heroes should not be discarded simply because they are not in the first group. Behemoth offers regeneration, Blink offers map-wide repositioning, Haunt has complete poison resistance, and Furnace or Drake provide aura-based damage. These become more attractive when their specific trait answers the stage better than raw damage would.
- Choose Valorius when your towers can remain inside his support range.
- Choose Ruby for dense waves and maps where splash attacks can hit repeatedly.
- Choose Frostbeard when slowing enemies gives your towers more firing time.
- Choose Oracle only when invisible enemies are a real stage mechanic.
- Choose Ace or Black Jack when mana limits your spell-heavy strategy.
- Use a durable or mobile hero when the map requires active interception rather than passive support.
| Role | Recommended heroes | Trade-off |
|---|---|---|
| Support | Valorius | Position-dependent |
| Area damage | Ruby | Needs grouped targets |
| Control | Frostbeard | Aura range limits coverage |
| Detection | Oracle | Narrow value without invisible enemies |
| Economy | Ace or Black Jack | Less immediate combat impact |
| Survival or mobility | Behemoth or Blink | May give up team-wide damage |
Hero value changes sharply with placement, enemy traits, and whether the stage rewards damage, control, detection, or resource generation. Build around the stage objective rather than forcing one hero into every deck.
Upgrade plan
A practical order for new and midgame players
First, develop one dependable damage tower instead of spreading materials across every card. Crossbow Tower is a sensible candidate if you have it at a usable rarity and level. Second, build a control option such as Slowdown Tower. Third, invest in Mana Tower if you regularly use spells or struggle to fund upgrades. Fourth, raise one hero whose role matches your maps, with Valorius, Ruby, Frostbeard, or Oracle covering different common needs.
Before each difficult stage, inspect the route and enemy traits. Replace a general damage tower with a counter only when the counter solves a clear problem. Also compare the card you own, not an imagined perfect copy: rarity, rank, level, affinity, and available materials matter more than a theoretical tier label.
Do not spend rare materials solely because a card is Legendary. The community reference documents permanent card upgrades separately from temporary battle upgrades, and player reports consistently emphasize that a developed lower-rarity card can remain useful for a long time. That point is community advice rather than an official rule, but it is a sensible resource-management principle.
- Keep one area-damage tower, one control tower, and one economy or utility option available.
- Test a card for several maps before committing scarce upgrade materials.
- Save specialized counters for stages where their effect is clearly relevant.
- Reassess the deck after balance updates or new card releases.
- Record which card actually prevents leaks; damage numbers alone can be misleading.
| Situation | Suggested adjustment |
|---|---|
| Crowded waves | Favor Crossbow, Lightning, Storm, Ruby, or other area effects |
| Fast leaks | Add Slowdown Tower or Frostbeard |
| Spell-heavy strategy | Add Mana Tower, Ace, or Black Jack |
| Invisible enemies | Use Oracle or another verified detection option |
| Poison-resistant enemies | Avoid relying only on poison damage; use a different damage type |
| Minotaur-focused content | Consider Volcano Tower as a specialist counter |
Because no current official patch notes or version number were verifiable for this guide, treat the rankings as role-based recommendations. If the game changes attack values, cooldowns, or enemy resistances, retest the affected cards.
FAQ
Common questions
What is the safest first tower to upgrade?
Choose the strongest flexible damage tower you actually own and can level consistently. Crossbow Tower is a practical recommendation because its explosive attack and blast-radius upgrades suit many wave layouts, but a well-developed alternative can be better if your Crossbow card is underleveled or restricted by the stage.
Are heroes or towers more important?
Towers usually provide the main fixed defense, while heroes add movable damage, support, detection, or interception. A balanced deck is safer than prioritizing only one category. Upgrade the component that currently causes your failures: missing damage, leaks, lack of mana, or an enemy mechanic you cannot answer.
Is Valorius always the best hero?
No. Valorius is a strong support recommendation when friendly units can stay within his range. Ruby may be better against dense waves, Frostbeard may be better when control is decisive, and Oracle may be necessary against invisible enemies. His ranking is based on flexibility, not a universal damage test.
Should I use Legendary cards over lower-rarity cards?
Not automatically. Rarity matters, but card level, rank, affinity, upgrade materials, and stage restrictions matter too. A developed lower-rarity card can be the better choice until the higher-rarity card receives enough investment.
Why is this tier list different from another community list?
Crazy Defense Heroes has many cards with highly specific roles, and public sources do not provide one consistently maintained official tier list. Different lists may measure campaign progress, invasions, bosses, economy, or maximum-level damage. Compare the criteria before comparing the letters.
Sources
What we checked
Official listings establish current availability and product facts. Community pages are used for mechanics and build history, then labeled separately.