Forum:Crystal beasts deck no rainbow dragon help

I need help with my crystal beast deck. I don't own a rainbow dragon or any sacred beasts. Please leave any comments at all. Here is what's in it:

Monsters: Sapphire Pegasus x2 Topaz Tiger x2 Amethyst Cat x2 Amber Mammoth x2 Cobalt Eagle x2 Emerald Tortoise x2 Ruby Carbuncle x2 Gravi-Crush Dragon x1 Magna-Slash Dragon x1 Grave Squirmer x1 Rescue Cat x1 Phantom Skyblaster x1 Seismic Crasher x1 Dweller in the Depths x1

Spells: Ancient City-RR x2 Crystal Release x1 Crystal Tree x2 Crystal Blessing x2 Crystal Abundance x1 Crystal Promise x2 Crystal Beacon x2 Field Barrier x1 Hand Destruction x2

Traps: Crystal Raigeki x2 Crystal Pair x2 Last Resort x1 Gem Flash Energy x1