Tiny Epic Defenders 1st Edition: Kickstarter Mini-Expansion introduces 11 cards not found in the Base edition of Tiny Epic Defenders:

Giant Snake (Dire Enemy)
Basilisk (Dire Enemy)
Fire Elemental (Epic Foe)
Overlord (Epic Foe)
Baal's Bait (Artifact)
Gavel of Gamelyn (Artifact)
Necromancer (Hero)
Assassin (Hero)
Avenger (Legendary Hero #1)
Revenant (Legendary Hero #2)
Guardian (Legendary Hero #3)

For more information: https://boardgamegeek.com/boardgameexpansion/162225/tiny-epic-defenders-kickstarter-mini-expansion