If you can get working on making a bunch of those black and white spirit tokens that the afterlife mechanic makes, you can sac them and trigger Teysa at the same time
This includes cards from The First Chapter , Rise of the Floodborn , and Into the Inklands
Then Wizards dropped the best planeswalkers in MTG had ever seen onto the battlefield in 2007, and everyone collectively went, Wait so who am I now? Suddenly, dragons, mind mages, and a suspicious number of shirtless heroes were doing my job for me
After the deck is riffled, halves are held onto their backs, thumbs pulling inward, index fingers push down, and the other fingers bow the halves outward
While Modular creatures help their buddies grow, other artifacts like Librator, Urza's Battlethopter, Chronomaton, and Patchwork Automaton consistently enhance themselves as the game progresses