Lucifer`s Grimoire

Lucifer`s Grimoire comes into play with 10
charge counters
On your upkeep, remove a charge counter and
put a 3/1 Demon creature token with haste into
play under your control.
If a demon token you control does damage to a
player add a charge counter to Lucifer`s Grimoire.
Once Lucifer`s Grimoire runs out of counters
discard Lucifer`s Grimoire.