Eco

After playing the socketed card, its effect triggers a second time. Effectively doubles every aspect of the card's function.

• Effect: Card effect triggers twice
• Type: Copy Gem
• Stacking: Additional copies add more triggers

• High-damage finishers: The strongest card firing twice is exponentially more impactful than a weaker card
• AoE cards (Whip, Bone): Two rounds of board-wide damage per play
• Support cards (mana recovery, armor): Double the utility per play

• Double Damage Gem: Double Damage × Echo = effectively 4× damage output
• Amount Gem: High-Amount cards fire all projectiles twice — multiplicative coverage
• Status gems (Burn, Freeze): Status applications double, stacking effects twice as fast

One of the highest-impact gems in the game regardless of card choice. Slotting Echo on your finisher is almost always the optimal play.