Brave Undead

Haste, Soul Seeker (Has +1/+1 for each level
counter on this permanent. Whenever this
permanent destroys another creature, add that creatures converted mana cost to your mana pool
as colorless mana whenever you could next cast a sorcery. You can not use this mana to cast spells.)
{2}: Level Up
Brave Undead is all colors except green.
"Thou who art Undead, art chosen..."
-Oscar of Astora