mtg split cards play both Top 10 Spells (Excluding Fused Cards) in Magic: The Gathering Split card - MTG Wiki

Banner of Kinship Banner of Kinship can provide Coat of Arms levels of board pump, sometimes enough to end the game on the spot, but it also has the failcase of being a complete blank if you have no creatures in play already

Until end of turn, it gains haste and becomes a Pirate in addition to its other types. Stealing stuff is fun

Two-Card Death Combos MTG x TMNT introduced a lot of new cards that care about an opponent losing half of something

Liesa, Shroud of Dusk Group slug commanders like Liesa, Shroud of Dusk can be a lot of fun to play against if youre tired of slow games, since their life loss ability adds a ticking clock element to the game

If you're winning with Spider Spawnings and stalling the game out with Gnaw to the Bones, then you're going to need a critical density of creatures