The kicked version, a 4/4 flier, is almost universally good in Limited, assuming you can cast it
It makes all of your Planeswalkers capable of using their ultimate the turn you play them, and if you combine it with cards like Doubling Season and Hardened Scales, you can almost instantly turn a 1/1 into a 10/10 with no issue
Kellan has had adventure abilities in The Lost Caverns of Ixalan and Murders at Karlov Manor , though its hard to say if that means the mechanic is branching out or if this is a way to tie him to his home plane
People have a bad habit of presenting Elsha of the Infinite decks at casual tables, claiming that they built it to do fun spellslinger stuff, and then just cramming Sensei's Divining Top in the deck anyway
The goal of the deck involves increasing their attack as much as possible to get a quick OTK