Mike, the Dungeon Master [Secret Lair Drop Series] Dragon whenever either of those creatures

whenever either of those creatures deals combat damage

exile target non-Ooze creature an opponent controls until Gelatinous Cube leaves the battlefield

Set: Shadows over Innistrad Prerelease Promos Type: Legendary Creature — Frog Horror Rarity: Mythic Cost: {3}{B}{G} Deathtouch

If this spell was foretold

Mike, the Dungeon Master [Secret Lair Drop Series] Dragon whenever either of those creaturesSet: Secret Lair Drop Series Type: Legendary Creature Human Rarity: Rare Cost: {1}{G}{W} {2}, {T}: Choose target creature card in your graveyard that was put there from the battlefield this turn. Return it to the battlefield tapped. Friends forever (You can have two commanders if both have friends forever.) "A friend is someone you'd do anything for."