Watson, Best Boy

Sacrifice a food token: Watson, Best Boy gains flying, indestructible, or double strike until the end
of turn.

{g/u}{g/u}{g/u}: Watson, Best Boy gets +1/+1 until end
of turn for each {u} spent this way. Gain 1 life for each {g} spent this way. Activate this ability only
once per turn and only on your turn.

"...what?"