Gatecrash Prerelease Pack Simic has no variants:
Explore this pack in Sealed.

Sheets

Sheet common

At rate 1/34 (2.94%)
Adaptive Snapjaw
Armored Transport
Bioshift
Burst of Strength
Clinging Anemones
Cloudfin Raptor
Crocanura
Drakewing Krasis
Forced Adaptation
Frilled Oculus
Greenside Watcher
Hydroform
Ivy Lane Denizen
Keymaster Rogue
Leyline Phantom
Metropolis Sprite
Millennial Gargoyle
Naturalize
Predator's Rapport
Prophetic Prism
Razortip Whip
Riot Gear
Sage's Row Denizen
Scatter Arc
Shambleshark
Simic Guildgate
Skyblinder Staff
Skygames
Spell Rupture
Spire Tracer
Totally Lost
Verdant Haven
Way of the Thief
Wildwood Rebirth

Sheet uncommon

At rate 1/23 (4.35%)
Aetherize
Agoraphobia
Alpha Authority
Crowned Ceratok
Elusive Krasis
Experiment One
Gridlock
Hindervines
Incursion Specialist
Merfolk of the Depths
Miming Slime
Mindeye Drake
Nimbus Swimmer
Rapid Hybridization
Rust Scarab
Sapphire Drake
Serene Remembrance
Simic Charm
Simic Fluxmage
Simic Keyrune
Tower Defense
Urban Evolution
Zameck Guildmage

Sheet rare_mythic

At rate 2/31 (6.45%)
Biomass Mutation
Biovisionary
Breeding Pool
Diluvian Primordial
Fathom Mage
Glaring Spotlight
Gyre Sage
Illusionist's Bracers
Mystic Genesis
Ooze Flux
Realmwright
Simic Manipulator
Sylvan Primordial
Thespian's Stage
Unexpected Results
At rate 1/31 (3.23%)
Prime Speaker Zegana