Old Entity Hastorr [CT12-EN005] Super Rare Fusion/Tuner Monster add 1 "Polymerization" from your

add 1 "Polymerization" from your Deck or GY to your hand

if your monster battles an opponent's monster: Play rock-paper-scissors with your opponent

return the banished Fusion Monster to your field in face-up Attack Position

You can only use this effect of "Knightmare Unicorn" once per turn

Tribute them for a Tribute Summon

Old Entity Hastorr [CT12-EN005] Super Rare Fusion/Tuner Monster add 1 "Polymerization" from yourSet: 2015 Mega Tins Card type: Synchro Effect Monster Rarity: Super Rare Attack: 2300 Defense: 1000 1 Tuner + 1 or more non Tuner monsters If this card is sent from the Monster Zone to the Graveyard: You can target 1 face up monster your opponent controls; equip this card from your Graveyard to that monster. That monster cannot attack, also its effects are negated. If this card leaves the field while equipped to an opponent's monster by this effect: