Spore Druid's Dirge

At the beginning of your upkeep, put a verse counter on Spore Druid's Dirge.
You can't cast spells with converted mana cost equal to or less than the number of verse counters on Spore Druid's Dirge.
{b}, Remove X verse counters from Spore Druid's Dirge: Target creature gets -X/-X until end of turn. Create an X/X Fungus Horror creatu