Simic Ascendancy
{G}{U}
Enchantment
{1}{G}{U}: Put a +1/+1 counter on target creature you control.
Whenever one or more +1/+1 counters are put on a creature you control, put that many growth counters on ~this~.
At the beginning of your upkeep, if ~this~ has twenty or more growth counters on it, you win the game.