how much is a mewtwo ex pokemon card worth 61/162 Breakthrough Holo Rare Near Mint ULTRA RARE Mega M Mewtwo

I consider Bonesplitter to be a staple for Pauper Cubes, and a very nice addition to most Cubes with a heavy focus on combat

If you're fine with that, then I would keep it

Sacrifice it for a card

November 28th: MEGA Dream ex releasing as Japan's annual High Class Pack set, featuring Mega Dragonite ex

Mana abilities dont use the stack, so they cant be responded to in any way, including countering

Crosis's Charm has two very relevant modes (creature and artifact kill) and a third (bounce) that, while lesser used, can still have a big impact on a game if timed correctly, almost entirely because no one will see it coming