I
Ibrandlin
Ice Gnome
Ice Lizard
Id Fiend
Iguana, Giant
Ikiryo
Illithocyte
Immoth
Imp
Imp, Assassin
Imp, Blood Sea
Imp, Chaos
Impersonator
Imp (Mystara)
Imp, Wishing
Incantifer
Incarnate
Ingundi
Inquisitor
Insect, Giant
Insectare
Insect Swarm
Insect Swarm (Athas)
Intellect Devourer
Invisible Stalker
Invisible of Stardock
Iron Cobra
Ironmaw
Ivy, Crawling
Ixitxachitl, Ixzan
Ixitxachitl