Felisa, Fang Of Silverquill Take Your Lessons To Heart Released as part of the Silverquill preconstructed Commander deck alongside Strixhaven, Felisa, Fang of Silverquill is a legendary Vampire capable of making great use of +1/+1 counters
The two forms received separate card treatments across the dual release
You know to stay away from the others on this list, but these can break your heart on the battlefield
In the game's early period, the assumption was that the role of the planeswalkers in a game was being acted out by the players, with cards representing spellcasting and summoned creatures
Only finding 1-mana spells might sounds too restrictive, but it can find cantrips like Ponder and Brainstorm, interaction like Pongify and Rapid Hybridization, and even another cheap 1-mana tutor to give you more options down the line