mtg meren commander deck of Clan Nel Toth Sacrifice and Reanimation Magic Stitched Edge Playmats featuring popular Magic The Gathering artwork Meren of Clan Nel Toth

In EDH, Yarok gives you a reason to play good stuff that have good enter triggers, and each new MTG set gives Yarok more toys to play with, seeing as everything has enter triggers these days

As blue is also the color most associated with card draw, even if the top card of your library isn't a Merfolk, you can reliably ensure castable spells are atop your library through the use of card drawing effects and scrying

However, he also has three exhaust tap abilities, with one green giving three mana of any colour, one blue drawing three cards, and one red dealing three damage to any target

Since the explore will most likely result in a +1/+1 counter whenever you activate it, you'll be getting a lot counters, and you've got lots of ways to get more

I beat Dredge Game 1 last weekend with zero graveyard hate because I was able to Judgment, Supreme Verdict, and Terminus them in their draw and combat steps to completely run them out of Ichorids and Bridges from Below