Unlike the Signets, they can tap for either colored or colorless mana, but the former comes at the cost of life
#4 The Trigger for the Change Is the Full Moon There are two ways to accomplish this: blatantly and implied
The drawback of having to discard doesnt matter when you are drawing five-plus cards already
This is particularly good with the dinos in the deck that have enrage
and Vile Bile are relics of Un-sets of days of yore, but I might actually run a Commander deck around It Came from Planet Glurg
Aboshan, Cephalid Emperor Aesi, Tyrant of Gyre Strait Arixmethes, Slumbering Isle Brinelin, the Moon Kraken Caelorna, Coral Tyrant Caetus, Sea Tyrant of Segovia Charix, the Raging Isle Gyruda, Doom of Depths Gyruda, Doom of Depths Kamiz, Obscura Oculus Koma, Cosmos Serpent Koma, Cosmos Serpent Koma, World-Eater Krothuss, Lord of the Deep Llawan, Cephalid Empress Lorthos, the Tidemaker Lorthos, the Tidemaker Marvo, Deep Operative Monstrosity of the Lake Octavia, Living Thesis Queza, Augur of Agonies Shark Shredder, Killer Clone Sin, Spira's Punishment Sin, Unending Cataclysm Slinn Voda, the Rising Deep Taniwha The Terror of Serpent's Pass The Unagi of Kyoshi Island The Watcher in the Water Tromokratis Ultros, Obnoxious Octopus Verazol, the Split Current Wrexial, the Risen Deep Xolatoyac, the Smiling Flood Xyris, the Writhing Storm Yorion, Sky Nomad
