+Splinter (5)
As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.
Exile target artifact. Search its controller's graveyard, hand, and library for all cards with the same name as that artifact and exile them. Then that player shuffles.
Enchant creature
Enchanted creature has ": Create a token that's a copy of this creature, except it has haste. Exile that token at the beginning of the next end step."
Trample
Splinterfright's power and toughness are each equal to the number of creature cards in your graveyard.
At the beginning of your upkeep, mill two cards.
: Splintering Wind deals 1 damage to target creature. Create a 1/1 green Splinter creature token. It has flying and "Cumulative upkeep ." When it leaves the battlefield, it deals 1 damage to you and each creature you control. (At the beginning of its controller's upkeep, that player puts an age counter on it, then sacrifices it unless they pay its upkeep cost for each age counter on it.)
Gatherer works better in the Companion app!