Froterian Storm

when this card enters the battlefield, fossilize it X times. (put X fossil counters on it. during each one of your upkeeps remove a fossil counter from it and put a revelation counter on it. When it hits 0 fossil counters, sacrifice it)
When this card leaves the battlefield. draw cards equal to twice the number of revelation counters it had. You may then summon any number of creatures from your hand with mana value X or less without paying their mana costs. If you do, fossilize all of them twice.