Card of Demise is a card that allows the user to draw until they are holding 5 cards, with the supposed drawback that they must discard their entire hand after 5 turns have passed
This can look like a targeted ability that gives deathtouch like Qarsi Revenant, typal keyword anthem effects like Death Baron, triggered effects like Ankle Shanker, and even a few of the best equipment with deathtouch like Basilisk Collar
Cards like Hullbreaker Horror and Nezahal, Primal Tide are some of the best odd-costed threats available, turning the game after one resolution
This is an interesting group hug commander that encourages your opponents to take damage and let you grow John so you each get more cards
Give Them a Kaiju: I slap a big Kaiju monster (like Jizukiru) on their field, which gets rid of their strongest monster
Yuga was reluctant to use Kaizo until he reminded him that beating Nail would return his original data, and after Yuga successfully stabilized the installation, Luke aided him in Maximum Summoning "Supreme Machine Magnum Overlord"