Den Protector [Commander 2016] Duel Decks Anthology when a monster is returned

when a monster is returned from the field to the owner's hand

Set: Battles of Legend: Relentless Revenge Card type: Effect Monster Rarity: Ultra Rare Attack: 1700 Defense: 700 Loses 1000 ATK while you control "Iron Hans"

Set: Duel Terminal 4 Card type: Effect Monster Rarity: Super Rare Attack: 2200 Defense: 1600 When this card is Normal or Special Summoned

out in the sun

III — Exile all opponents' graveyards

Den Protector [Commander 2016] Duel Decks Anthology when a monster is returnedSet: Commander 2016 Type: Creature Human Warrior Rarity: Rare Cost: {1}{G} Creatures with power less than Den Protector's power can't block it. Megamorph {1}{G} (You may cast this card face down as a 2 2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1 +1 counter on it.) When Den Protector is turned face up, return target card from your graveyard to your hand.