grief mtg card Modern Horizons 3 Retro Mythic Evoke—Exile a black card from your hand. Grief

Jokes aside, lets get to the actually well thought out ones

Soul Snare - I kinda liked the idea of the threat on the battlefield for a similar effect to Ghostly Prison , but I think it's just too weak of a card

If you discard a card with madness and wish to cast it, Necropotence's ability won't exile that card

Sensational Spider-Man cares about Stun Counters specifically, which could cause a surge in demand for Stun Counter-based cards shortly

By repeatedly bringing back threats or spells, you force the blue mage to use counter after counter, and eventually, they may run low

Its best home in Commander is an Angel typal deck, but if it's the only morph creature you present to your opponents, it's easy for players to play around