Ygra, Eater of All

The joke lives in the type-line rewrite: by turning every other creature into a Food artifact, this reframes the whole board as a pantry it can eat through. That single global grant does two things at once. It hands every creature (yours and theirs) a sacrifice outlet that gains three life, which reads as a gift until you get to the payoff: every Food that dies feeds two +1/+1 counters onto the 6/6 body. Opponents sacking for life, players routing through their own outlets, a chump block trading away, all of it becomes fuel. The ward cost tracks the theme rather than the power level, since opponents pay to remove it by feeding it exactly the resource it converts into growth; protection and payoff are the same currency. The sharper design tension is that the counters only accrue while the body survives the same feeding it profits from. A symmetric sweeper is the clean answer precisely because it doesn't grow it: when the board and this creature die together, it is already in the graveyard when the death triggers try to resolve, so no counters ever land. The efficient line, then, is to keep the outlets pointed away from it: pick off the newly-minted Food one at a time, or run a mass sacrifice through an effect that spares it, so each dying morsel stacks growth onto a permanent that lives to spend it. A sacrifice payoff built inside-out: instead of asking you to bring Food to the table, it declares the table already covered in it.