one piece tcg crocodile deck (OP04) (Blue) Profile & Gameplay 010 Common Starter Deck EX One Piece Trading Card Game

It gets significantly stronger in decks that like to take extra combats, like Karlach and Moraug, or even Aurelia

Double 6/6 cats with haste using Glistening Dawn at turn four

There are a few decks that actual turn this rule into an exploitable advantage, using it as a free discard outlet to pitch giant creature cards to Reanimate next turn or a Dredge card such as Golgari Grave-Troll for subsequent self-milling, but in what I would call fair decks, this maximum hand size rule is not nice, especially when you are mana-screwed

It has also been banned in Modern, because it was miserable to play against

The best reason to include black in a Squirrel deck is for discard or creature removal as a supporting strategy