corrupted altar

{1}{t}: add two mana of a random colour to
your mana pool. (to determine what colours
are added roll a d6 , if you roll a
1 add white mana, 2 blue mana,
3 black mana, 4 red mana, 5 green mana, 6 colourless mana)
once magic was reliable, after the corruption it
was everything except reliable