Corrosive Mentor [Shadowmoor] XY135 while this card is in

while this card is in your GY (except during the Damage Step): You can Set this card

Set: The List Type: Land Rarity: Rare Emeria

if this card attacked: Destroy the monster this card attacked

When this card with Xyz Material leaves the field because of an opponent's card effect: You can target a number of Level 4 "Bujin" Beast-Warrior-Type monsters in your Graveyard

During your Main Phase: You can activate this effect

Corrosive Mentor [Shadowmoor] XY135 while this card is inSet: Shadowmoor Type: Creature Elemental Rogue Rarity: Uncommon Cost: {2}{B} Black creatures you control have wither. (They deal damage to creatures in the form of 1 1 counters.) Guttering cinders stoke their dying flames by snuffing out the lights of others.