Gregor, World Weary

Deathtouch, Annihilator 3, Nonbasic Landwalk.
Gregor enters the battlefield with {x} Verse
counters on it.
{b/g}, remove a verse counter: Fateseal 1
{b/g}{b/g}, remove 2 verse counters: Draw a card.
{b/g}{b/g}{b/g}, remove 3 verse counters: Destroy target permanent.