You can establish some wacky infinite loops or simply extract the most value possible from creatures with undying and persist and similar effects
(It deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) Perfection is at hand
It exiles the opponent's land so they can't get it back
Legendary Creature - Human Warlock Felisa, Fang of Silverquill Flying Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Whenever a nontoken creature you control dies, if it had counters on it, create X tapped 2/1 white and black Inkling creature tokens with flying, where X is the number of counters it had on it
Instant Color tag templates(None) Hunter's Mark This spell costs less to cast if it targets a blue permanent you don't control
While Myr Enforcer does have affinity, I think Displaced Dinosaurs helps the beatdown plan a ton