Malren, Blind Tideseer

Blue creatures you control have lifelink.
Token creatures you control get +0/+2
At the beginning of each end step, if you gained 4 or more life that turn, each player draws a card. Then, you draw a card and untap Malren, Blind Tideseer and tap target creature.
{w}{u}{t}: Create a 1/1 blue fish creature token.