I was going to abandon Shadow Era anyway, so this seems like the right place to dump the ideas I've had for a while. (This doesn't mean that I don't need the prize lol)

Carnivorous plant
Hunter ally
3cc 1att 2def
When this ally deals combat damage it becomes a hunter item - artifact until the end of your opponent's turn.

Symbiotic plant
Hunter ally
3cc 2att 5def
This ally cannot attack allies.
If you have an armor in play any hero or ally that enters combat with your hero takes 2 damage.

Twilight arrow
Hunter ability
Target hero or ally takes 1 arcane damage, and you may reveal a card from your hand. If it is a hunter card with Arrow in its name, play it at no cost.

Oath keeper
Hunter ally - unique
4cc, 1att, 4def
Haste. When a card is removed from play return Oath keeper to your hand and draw a card.

Hidden relic
Hunter item - artifact
5cc
1cc: destroy Hidden relic. Your resources are renewed.
When Hidden relic is sent to graveyard, discard 3 cards from the top of your deck, then put 3 items from your graveyard into your hand.