blue black eldrazi deck ( need help )

Modern* UB (Dimir)

Magos_t

Creature (25)

• 1x Bane of Bala Ged
• 2x Blight Herder
• 4x Cultivator Drone
• 2x Eldrazi Skyspawner
• 2x Endbringer
• 4x Fathom Feeder
• 2x Ruination Guide
• 3x Salvage Drone
• 2x Tide Drifter
• 1x Ulamog's Crusher
• 2x Ulamog's Despoiler

Land (22)

• 4x Dreadship Reef
• 7x Island
• 2x Jwar Isle Refuge
• 1x Nephalia Academy
• 1x Spawning Bed
• 1x Submerged Boneyard
• 6x Swamp

Artifact (2)

• 2x Hedron Archive

Instant (6)

• 2x Abstruse Interference
• 2x Void Shatter
• 2x Warping Wail

Sorcery (4)

• 2x Bone Splinters
• 2x Swarm Surge

Enchantment (2)

• 2x Call to the Kindred

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i made my first deck after i bought about 80ish eldrazzi and accessory cards this is it. i have alot more cards.

so what do you think i could do to make this deck better.

and also i dont know if its legal in modern

general help is aprreciated

Date added	3 years
Last updated	3 years
Legality	This deck is Modern legal.
Rarity (main - side)	10 - 0 Rares 22 - 0 Uncommons 16 - 0 Commons
Cards	61
Avg. CMC	3.28
Tokens	Eldrazi Scion 1/1 C