Accelgor becomes restless when idle
0: Draw a card -2: Create a 2/2 blue Spirit creature token with vigilance and Whenever you draw a card, put a +1/+1 counter on this creature -12: Target opponent chooses a permanent they control and returns it to its owners hand
Then you can -4 her very easily with a starting 3 loyalty with just one +1 to make an emblem that gives your artifact dorks +1/+1 and drops artifact costs by one
Add to that some nice lifegain and the option to cheat out nonland permanents and youve got a fun card to build around
Once transformed into Ajani, Nacatl Avenger, it becomes a planeswalker that buffs your entire cat squad, creates more tokens, and blasts anything if you control a red permanent
Black: Phyrexian Arena, Deadly Dispute, Black Market Connections, Nights Whisper, etc