It was supposed to be a random limited card that saw little constructed play, but it ended up breaking several formats
Using it right after a Windfall where you force every player to discard and draw 20 cards is a surefire way to get ahead, but even if you only get three mana back, you'll get all the cast triggers from your permanents for free
You can also browse our MTG Commander decks if you want a ready-to-play deck rather than a random booster product
Both categories are legal in standard where applicable
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.) A creature that's both a Zombie and a Mutant will get +X/+X only once from Hancock's first ability
In fair decks, you get cards and an ally, except for Cut a Deal, which seems the most sketch