Ysemsin, Force of Nature

Lifelink, reach

Ysemin gets +1/+1 for each permanent you control
with a jewel counter on it.

When Ysemsin attacks, you may pay {1}{g}{w}. If
you do, another target attacking creature you
control gets +X/+X and gains lifelink until end of
turn, where X is Ysemsin's power as this ability
resolves.