While every card will find its home in decks, an acorn symbol will let you know if there are restrictions on where you can play the card outside of Unfinity Draft
Wiitigo was a 6/6, Juggernaut of sorts but better, because if it attacked or blocked it gained a +1/+1 counter, otherwise it lost a counter, talk about use it or lose it
I also really like her with Esper Vehicles with those triggering to make the crew that tap for it with a 2 power each
It makes two Black mana when sacrificing recurring things like Bloodghast and Reassembling Skeleton
The two-drop 2/2 Mount with 3 to saddle has a combat damage trigger to give your spell flashback this turn, with a zero cost if it was saddled
Putting Creatures on Top of Your Library Another option for triggering Runo is just to have a creature with mana value six or higher on top of my library, so to that end there are a bunch of great cards that can facilitate that