yugioh dino deck Dinosaur List and Card Guide may be 1st or Unlimited Edition Yugioh True King Dinosaur Deck

There are a couple different answers to this question, so I'll run through them all

Tromell would be great if he only had that activated ability, but he also makes your nontoken creatures enter with an extra counter

Legendary Creature - Human Knight Draw (CTRL to add secondary) Finisher Karlach, Fury of Avernus Whenever you attack, if it's the first combat phase of the turn, untap all attacking creatures

While Bant Counters doesn't seem like the most inspiring of themes, Tidus, Yuna's Guardian provides so much value for three mana that it's hard to ignore, letting you draw cards, move counters around, and even proliferate each turn