this deck is set up as a pure earth deck and I intend to keep it that way. chiron isn't really that useful since I barely have any spell cards in here. any fixes suggested should be easy to get cards like commons or normal rares (not looking to spend big bucks building).

Monster:

Goblin Attack Force x3
Gigantes x3
Chiron the Mage
Gemini Elf x3
Dark Driceratops
Gearfried the Iron Knight
Obnoxious Celtic Guardian
Man-Eater Bug x2
Blindly Loyal Goblin
Berserk Gorilla x2
Insect Knight x3

total = 21

Spell:

Gaia Power
Premature Burial
Heavy Storm
Mystical Space Typhoon
Axe of Despair x2
Smashing Ground
Snatch Steal
Nobleman of Crossout
Graceful Charity
Swords of Revealing Light
Pot of Greed

total = 12

Trap:
Ring of Destruction
Bottomless Trap Hole x2
Call of the Haunted
Spirit Barrier
Sakuretsu Armor
Trap Jammer

total = 7

-[2]Man Eater Bug
+[2]DD Assailant
-[2]Jirai Gumo
+[2]Gigantes

Link in the sig

I took your suggestion for removing the 2 jurai gumos and replacing them with 2 more gigantes but I don't think the D.D. Assailant will work out though, they're extremely hard to get. I almost need to go with sakretsu armor when I build this instead of mirror force cause sakuretsu is alot easier to get. I'll rate your deck in a moment.