Alex, Devourer of Ankles

Menace
{w}{t} Gain three life
{w}{t} Exert Tan Alex, Devourer of Ankles,
gain three life and put X +1/+1 counters on Alex, Devourer of Ankles. X is the number of times you've exerted a creature named Alex, Devourer of Ankles this game.
"Good kitty"—Hudson Fuller