Snowbaron Lagombi

Snowboulder - You may pay {x}, if you do
Snowbaron Lagombi puts a 2/2 Snowboulder
token onto the battlefield with X Growth counters
on it where X is the amount of mana spent.
Remove a Growth counter each turn and when Snowboulder no longer holds any Growth
counters, remove it from the game at end of turn.
As long as Snowbaron Lagombi is present, Snowboulders you control have Shroud.