Gleancrawler [Ravnica: City of Guilds] Elf Assassin If you Special Summon a

If you Special Summon a "Plunder Patroll" monster(s) from the Extra Deck

but a thick

destroy them and inflict damage to your opponent equal to the original ATK of the opponent's destroyed attacking monster

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

Gleancrawler [Ravnica: City of Guilds] Elf Assassin If you Special Summon aSet: Ravnica: City of Guilds Type: Creature Insect Horror Rarity: Rare Cost: {3}{B G}{B G}{B G} ({B G} can be paid with either {B} or {G}.) Trample At the beginning of your end step, return to your hand all creature cards in your graveyard that were put there from the battlefield this turn.