Prismatic Giant Snail

Prismatic Giant Snails power and toughness is
equal to the number of snails you control.
Domain - If you control a plains, this creature
gains vigilance. Same is true for island: flying,
swamp: deathtouch, mountain: first strike,
forest: trample.
If you control a plains, island, swamp, mountain
and forest and at least one white, one blue, one
black, one red and one green snail, double
Prismatic Giant Snails power and toughness and
it gets shroud and indestructible.