Rate/fix my brand new crystal beast deck?

Question

monsters

magna slash dragon

saphire pegasus

rescue cat X2

ruby carbuncleX2

amethyst catX3

amber mammothX3

neo spacian grand mole

gravi crush dragon X2

emeral tortoiseX2

cobalt eagle

the unhappy maiden

topaz tiger

familiar knight

mirage dragon

cyber gymnast

spell

ancient city rainbow runins X2

crystal beaconX2

crystal blessingX2

lightning vortex

brain control

monster reborn

crystal promiseX3

magical mallet

crystal tree

crystal abundanceX3

heavy storm

traps

flashbang

crystal pairX2

a rival appears

crystal rageki

sakuretsu armor

negate attack

last resort

i need rainbow dragon or dark rainbow dragon really bad but if you can try to make it better thx

Answer 1

Lack of 3 CB Sapphire Pegasus = FAIL

5/10

You have too many dead cards that clog up your s/t zones, which are needed for Crystal Abundance.

Since you lack Rainbow Dragon, here's a decklist that works to use Abundance as a win condition.

Monsters: 18

3 Crystal Beast Sapphire Pegasus

2 Crystal Beast Amber Mammoth

3 Crystal Beast Topaz Tiger

1 Snipe Hunter

3 Crystal Beast Amethyst Cat

1 Neo-Spacian Grand Mole

1 Morphing Jar

1 Marshmallon

2 Crystal Beast Ruby Carbuncle

1 Rescue Cat

Spells: 18

2 Ancient City - Rainbow Ruins

1 Terraforming

3 Rare Value

3 Crystal Abundance

1 Crystal Beacon

2 Crystal Blessing

2 Crystal Promise

3 Crystal Release

1 Lightning Vortex

Traps: 4

3 Crystal Raigeki

1 Torrential Tribute

Total: 40 cards