Activate only as a sorcery. While the sorcery speed isnt ideal, having a board wipe that can be so specific is always powerful in MTG
Savage Knuckleblade Savage Knuckleblade was once a very powerful Constructed playable card, and a reason to make a Temur deck
Three mana is a bit steep to cast it from your hand, but potentially harmonizing it for one makes Roamer's Routine a worthwhile mid-pack selection in Draft
Level-Up cards must be played onto the corresponding Pokmon like evolution cards (though, in one rule change, it must be the active Pokmon), allowing for a variant of the Pokmon with greater HP, damage and additional attacks - as well as being able to use the moves of the card from which they levelled-up, unlike evolutions
30Reality FracturePlay Boosters
I love that it accumulates value turn after turn - without costing you any mana - which can leave your lands open for cheap creatures or some kind of a fire god flurry