Any commander that is part of a three or less card combo is pretty powerful, because you essentially have a piece of your win condition on-call at all times
The Bystial cards are a must-include in any Yu-Gi-Oh
Mass of Mysteries does a similar thing but on a grander scale
Goblins, Dinosaurs, Ninjas, and Ne'er-do-wells, each pack has 1 of over 46 possible themes
Robbin Zombie causes your opponent to discard the top card of their deck whenever they take damage in battle, while Robbin Goblin causes them to discard a random card from their hand under the same conditions
Card Set(s) -THE TIME OF BATTLE- [OP-16] CARD VIEW OP16-088 | C | CHARACTER Shimotsuki Ushimaru Attribute Slash Block Icon 5 Effect [Blocker] (After your opponent declares an attack, you may rest this card to make it the new target of the attack.) Card Set(s) -THE TIME OF BATTLE- [OP-16] CARD VIEW OP16-089 | C | CHARACTER Dracule Mihawk Attribute Slash Block Icon 5 Type The Seven Warlords of the Sea Effect [Rush: Character] (This card can attack Characters on the turn in which it is played.) [On Play] Draw 2 cards and trash 2 cards from your hand