Pool of Congregation

When Pool of Congregation enters the
battlefield you gain 1 life for each dinosaur you control.
Whenever a dinosaur enters the battlefield under
your control you gain 1 life. Put a +1/+1 counter
on up to two dinosaurs you control with power 3
or less.
"The pool, so like the others on Ixalan, gave more sustenance and drew crowds larger than ever."