Spiritcaller Snail

When Spiritcaller Snail is drawn from anywhere,
you must show your opponents.
Any player may pay {2} to not let you cast this spell,
if they do, Spiritcaller Snail goes back to your hand.
When Spiritcaller Snail enters the battlefield,
search your library for the Godskin Duo and
put them onto the battlefield.
If the Godskin Duo die in battle, at your next
upkeep search your library for Crucible
knight duo and put it onto the battlefield. Then Spiritcaller Snail is exiled.