Ward
Whenever you draw a card, double Kenkachi, Lifemaxxxer's power and toughness until end of turn.
As long as Kenkachi's power is six or greater, Kenkachi has flying and trample.
As long as Kenkachi's power 20 or greater, Kenkachi has indestructible, hexproof, and can't be blocked by creatures with a power of 2 or less.
See Psychic Stillness.