Infected Vermin [Odyssey] SM120 by Tributing 1 Thunder Effect

by Tributing 1 Thunder Effect non-Fusion Monster (in which case you do not use "Polymerization")

Set: Stardust Overdrive Card type: Effect Monster Rarity: Rare Attack: 100 Defense: 100 FLIP: Return 1 "Lightsworn" monster from your Graveyard to your Deck and draw 1 card

Set: Dark Revelation Volume 4 Card type: Effect Monster Rarity: Common Attack: 0 Defense: 0 If all "Batteryman C"(s) you control are in Attack Position

the first Level 1 Synchro Monster

Set: EX: Legend Maker Type: Colorless Rarity: Holo Rare Retreat cost: 0

Infected Vermin [Odyssey] SM120 by Tributing 1 Thunder EffectSet: Odyssey Type: Creature Rat Rarity: Uncommon Cost: {2}{B} {2}{B}: Infected Vermin deals 1 damage to each creature and each player. Threshold {3}{B}: Infected Vermin deals 3 damage to each creature and each player. Activate only if seven or more cards are in your graveyard.