Ragakhiin, Impulsive Seabeast

Whenever a Viashino enters the battlefield under
your control, put a +1/+1 counter on Ragakhiin,
Impulsive Seabeast.
Remove two +1/+1 counters from Ragakhiin,
Impulsive Seabeast, {t}: Search your library for
an Island card and put it into your hand, then
shuffle your library.