Clearing Dojo Stage 21-18 in Clash of Critters requires a precise balance of elemental units to counter the stage's specific defensive layout. By deploying a balanced roster that incorporates all five major elements—Grass, Rock, Water, Lightning, and Fire—you can effectively neutralize incoming threats and maintain board control. This guide outlines the recommended elemental distribution to help you bypass this mid-game hurdle and progress further into the Dojo challenges without stalling your momentum.
Recommended Elemental Formation
Success in Dojo Stage 21-18 relies on maintaining a diversified lineup. The stage design penalizes mono-elemental teams, making a "rainbow" approach the most viable strategy for consistent clear times.
| Element | Unit Count | Role in Stage 21-18 |
|---|---|---|
| Grass | 4 | Primary sustain and chip damage |
| Rock | 4 | Defensive front-line support |
| Water | 3 | Crowd control and slowing effects |
| Lightning | 3 | Burst damage for finishing targets |
| Fire | 3 | Consistent damage over time |
Tactical Execution Tips
The key to navigating the 21-18 encounter is managing your unit deployment order. Do not drop all units simultaneously; instead, focus on staggered placement to ensure your defensive Rock and Water units absorb the initial enemy wave while your damage dealers build up their energy.
- Prioritize Defensive Positioning: Always place your Rock units at the front of the formation to absorb heavy hits, allowing your Grass and Lightning units to operate safely from the backline.
- Synergy Management: Use your Water units to slow down fast-moving enemies, which creates a "kill zone" where your Fire and Lightning units can maximize their damage output.
- Energy Efficiency: Avoid over-committing to a single element if a unit falls. If a key damage dealer is defeated, rebalance your deployment to rely on the remaining elemental synergy rather than panic-summoning weak units.
Maintaining Progression
Once you have cleared stage 21-18, focus on leveling your primary units from the five-element pool used here. Because this specific composition is highly effective against varied enemy types in the Dojo, keeping these units at similar power levels will save you resources in future stages. If you find yourself struggling with damage output, check that your unit evolutions align with the current elemental bonus thresholds before attempting the next stage.
Free Clash of Critters Codes
Current active codes and how to redeem them.
Emily Johnson
Emily writes practical mobile strategy guides with a focus on resource planning, base progression, and the early decisions that shape a long-term account.
COMMUNITY
Player Comments
112 players commented on this guide.
Can you add more details about strategy in a future update?
This helped me understand strategy much better.
This saved me time in the early game.
I tried this today and it worked better than my old setup.