Sinister Seeds (Mosaic Rare) (BP02-EN192) - Battle Pack 2: War of the Giants Unlimited

Activate only when a face-up Attack Position monster you control is destroyed by battle. Special Summon 1 "Sinister Seed Token" (Plant-Type/DARK/Level 1/ATK 100/DEF 100) for every 500 points of Battle Damage you took from that battle.