pokemon cards games 50+ Official Collection with 5 Foils in Any Combination and at Least 1 Rarity, GX, EX, FA, Tag Team, Or Secret Rare : Toys & player playmat 1 rulebook 1 flip coin. The Pokémon Trading Card Game

Invasion of Alara Invasion of Alara Battle Siege When Invasion of Alara enters the battlefield, exile cards from the top of your library until you exile two nonland cards with mana value 4 or less

Finally, Etrata, the Silencer is a deck that flickers Etrata in response to her combat damage trigger, allowing you to hit players turn after turn

It is more because I think the effect is overrated

(Equipment, Auras you control, and counters are modifications.) The value of X needs to be determined both when the ability triggers (so you can choose a target) and again when the ability resolves (to check if that target is still legal)

Thats a lot of text, but put simply: This is bare minimum mana fixing with a reasonable activated ability