Brimog, Swamp's Overlord

Whenever one or more instant or sorcery cards is
put into your graveyard from anywhere, put a Vigilance, Reach, or Deathtouch counter on
Brimog, Swamp's Overlord that it does not have.
This ability triggers only once each turn.
{2}, Remove a counter from Brimog, Swamp's Overlord: target instant or sorcery card in your graveyard gains Flashback until end of turn. The flashback cost is equal to its mana cost.