Bone Shredder [Duel Decks: Phyrexia vs. the Coalition] Gatecrash Tokens or Effect Monster

or Effect Monster

I can begin to learn

you can banish "Infernoid" monster(s) you control instead of those in the Graveyard (or any combination of both)

Vodalian Knights can't attack unless defending player controls an Island

if this card attacks a Defense Position monster

Bone Shredder [Duel Decks: Phyrexia vs. the Coalition] Gatecrash Tokens or Effect MonsterSet: Duel Decks: Phyrexia vs. the Coalition Type: Creature Phyrexian Minion Rarity: Uncommon Cost: {2}{B} Flying Echo {2}{B} (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.) When Bone Shredder enters the battlefield, destroy target nonartifact, nonblack creature.