cards like boomerang mtg Similar cards to Boomerang Basics MTG has a lot of

With the non-mythic lands, you were exchanging a land for a tapped land that could be a spell if you don't need it

Fell the Mighty and Fumigate will also trigger nicely with Meathook Massacre on your board and give you loads of additional life gain, potentially making for a lovely finale and win condition

Your deck is completely immune to both your own Ugin and those controlled by opponents, which by itself is enough to win some match-ups

Just remember to do your lifegain on your turn, and pack in the graveyard hate to make sure you aren't helping another deck

Nessian Wanderer

It means you can play any nonland card whenever you have priority