It has a very high kill potential because it attacks on its 3-mana back side and immediately transforms into its front side
Not only does it make your Dinosaurs nearly unkillable in combat, but it also plays very well with the enrage keyword (Ripjaw Raptor), turning lethal damage from stuff like Earthquake into just enough damage to trigger enrage
Jenova, Ancient Calamity The triggered ability for the start of combat is a very strong one considering power-increasing cards like Fungal Fortitude, Haunted One and Rancor are easy to come by.Jenova, Ancient Calamity fits nicely with mutants such as Shambling Cie'th and combines with a sacrifice outlet to nearly give you a free sorcery-speed Village Rites #43
Strong will grow quickly, but it needs some evasion to push damage through
, Sacrifice two Saprolings: Draw a card
Either way it's a win-win for you