Larzigoth, Fool's Advisor

Dredge 5, Devour 1, Cumulative upkeep: each
player creates a 2/2 black zombie advisor.
When Larzigoth, Fool's Advisor is cast, if {r} was
used, gain control of a non-legendary creature
until end of turn. If {b} was used each opponent
loses 2 life for each zombie they control.
{t}{b}{r}: choose any number of players, they each
may flip a coin. If heads, you both mill two and
draw one. If tails, you gain control of any zombie.
{p/g}: a card in a graveyard gains dredge 1.