Yule Ooze [Happy Holidays] Null If a face-up Fusion Monster

If a face-up Fusion Monster you control is destroyed by battle

Set: Battle Pack 3: Monster League Card type: Xyz/Effect Monster Rarity: Shatterfoil Rare Attack: 2400 Defense: 2400 3 Level 4 monsters

Set: Light of Destruction Card type: Effect Monster Rarity: Secret Rare Attack: 2800 Defense: 2500 If you controlled 2 or more monsters at the start of your opponent's Battle Phase and all of them were destroyed by battle and sent to the Graveyard

except "Crystron Sulfefnir"

or Special Summoned by sending the above monsters you control to the Graveyard (in which case you do not use "Polymerization")

Yule Ooze [Happy Holidays] Null If a face-up Fusion MonsterSet: Happy Holidays Type: Creature Ooze Rarity: Rare Cost: {2}{R}{G} At the beginning of your upkeep, destroy another nonland permanent chosen at random, then put a number of +1 +1 counters on Yule Ooze equal to that permanent's converted mana cost. {R}{G}, Eat some food: Regenerate Yule Ooze. It loves having family for dinner.