Synma, Whisperer of Wurms

Whenever one or more +1/+1 counters are placed
on another nontoken creature you control, create
a 3/3 green Wurm creature token.
{t},{3}{u}{g}: Put a +1/+1 counter on each other creature you control that entered the battlefield
this turn.
"Grow stronger, little one. Grow into something they
cannot stop."