Mana Drain [Legends] Insect Mutant at least it has been

at least it has been for a considerable number of years

Set: Zendikar Rising Commander Type: Legendary Creature — Merfolk Rogue Rarity: Rare Cost: {U/B}{U/B} At the beginning of each end step

Sacrifice Arid Mesa: Search your library for a Mountain or Plains card

"This lump of rock is suspended in perpetual geostationary orbit around that black hole without falling in

Set: Commander Legends Type: Instant Rarity: Mythic Cost: {U}{U} Counter target spell

Mana Drain [Legends] Insect Mutant at least it has beenSet: Legends Type: Instant Rarity: Uncommon Cost: {U}{U} Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's converted mana cost.