Coop TD: Together Defend the Wall Ivy Gem Setup

If your Ivy is struggling to clear later waves in the Coop TD: Together Defend the Wall event despite having a high relic level, shift your focus to gem stat optimization. A lower-relic Ivy equipped with an SSS Critical Hit per Demon God gem will significantly out-damage a high-relic Ivy running generic attack or speed stats.

Your immediate action should be to use the guild borrow system to use a partner's SSS-crit-equipped Ivy for your event runs, then shift your daily progression toward gem rerolling.

Relic Level vs. SSS Crit Gem Synergy

In high-wave Defend the Wall challenges, enemy health scales past what raw hero levels and relic upgrades can manage. Ivy relies on critical hit spikes to clear dense waves before monsters reach your defensive line.

Gear Priority	Primary Stat Benefit	Event Effectiveness
SSS Crit per Demon God Gem	Dynamic critical multiplier scaled by active Demon units	Highest: Provides the required damage output for late waves
High Relic Level	Base hero stats and raw damage	Moderate: Hits a DPS plateau if critical hit synergy is missing
Generic Gem Sets	Flat attack speed or base attack power	Low: Fails to supply sufficient burst damage against scaled mobs

The SSS Critical Hit per Demon God gem scales dynamically with your active team composition. As you field more Demon-type units alongside Ivy, the gem's critical multiplier increases, converting her into a heavy crowd-clearing hero.

How to Maximize Ivy in Defend the Wall

Inspect Guild Loadouts: Browse your guild roster to locate a member who owns an Ivy equipped with an SSS Critical Hit per Demon God gem.
Borrow the Hero: Request and equip the optimized Ivy using the guild borrow mechanic, even if her base relic level is lower than your own hero.
Adjust Deck Synergy: Deploy Demon-type units to maximize the gem's "per Demon God" condition during the event run.
Shift Farming Goals: Stop over-investing resources into base relic levels. Reallocate daily crafting and reroll materials into targeting SSS-tier critical damage gem attributes.

Team Composition Constraints

Relying on an SSS Crit per Demon God gem requires committing deck slots to Demon-type units to stack the damage multiplier. This limits your ability to bring alternative support or crowd-control heroes. However, because Defend the Wall prioritizes raw damage output over defensive stalling, trading utility for critical DPS is the standard sacrifice needed to clear higher wave milestones.

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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.