Ashiok's Erasure (Promo Pack) [Theros Beyond Death Promos] XY176 many of which have an

many of which have an effect when they enter play or perform some other useful function

Whenever Wrexial

Set: 2015 Mega-Tins Mega Pack Card type: Effect Monster Rarity: Ultra Rare Attack: 1000 Defense: 1000 When this card in your possession is destroyed by your opponent's card (either by battle or by card effect) and sent to your Graveyard: Shuffle this card into the Deck

then target 1 monster you control (Quick Effect)

put a +1/+1 counter on Yahenni

Ashiok's Erasure (Promo Pack) [Theros Beyond Death Promos] XY176 many of which have anSet: Theros Beyond Death Promos Type: Enchantment Rarity: Rare Cost: {2}{U}{U} Flash When Ashiok's Erasure enters the battlefield, exile target spell. Your opponents can't cast spells with the same name as the exiled card. When Ashiok's Erasure leaves the battlefield, return the exiled card to its owner's hand.