At the beginning of your end step, if your life total is on the lazy caterer's sequence, create a Food token. If it's a Fibonacci number, create a 0/0 green and blue Fractal creature token, then put a +1/+1 counter on each Fractal you control. If it's a square number, put three +1/+1 counters on each creature you control whose power and toughness are equal. (You'll want to look these up.)