Belt Axe

How much should I sell my cards for?

some of the cards I have are
Thestalos the Firestorm Monarch
Dragon Piper
Giant rat
Morphing Jar
Gilford the Legend
Marauding Caption
Obnoxious Celtic Guard
Celtic Guardian
Mystical Elf
Gaia the Fierce Knight
Dark Magician
Harpie Girl
Dark Blade
Spellbinding Circle
Gift of the Mystical Elf
The Eye of Truth
Fatal Abacus
Blast with Chain
Fusion Sword Murasame Blade
Reload
Legendary Black Belt
Axe of Despair
Swords of Revealing Light
Monster Reborn
Change of Heart
Remove Trap
Mystical Space Tyhpoon
Pot of Greed
Poisen of the Old Man
Horn of Light
Lightning Vortex
Snatch Steal
Black Luster Ritual
Black Luster Soldier
Fusionist
and others
What should I sell them for as a whole? and what cards are worth the most?

im me and i want that morphing jar
i will say all probbaly say $100

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