Evolution Sliver

Slivers you control have "{1}{g}{u}: Adapt 3.
(If this creature has no +1/+1 counters on it,
put three +1/+1 counters on it.)
Following the defeat of Nicol Bolas and the arrival of so many new planeswalkers and their respective allies, the Simic Combine ensnared a sliver and began mutating it into a freak of science and nature.