Question about a potential trade

Hello, I'm still fairly new to the game and don't know the relative value of cards in order to trade. I am looking to trade:

Rampage Gargoyle A- covert down(1)
Moonlight Bird B+ - increase party attack(1)
Horned Demon B+ - increase party attack(1)
Hail Tarasque B- increase party defense(1)
Caim B- agility up(1)

The current offer I have is:

Tiamut A
Ring Dragon A+
Hellfire Talos+

I have no use for the Tiamut but I've never encountered the Ring Dragon or Hellfire Talos. Would this be a good or bad trade? Thank you.

hmm your stuff worth my estimate:

garg reg 4ep, 2ipa and 1 agi and 1 ipd maybe at 2 ep (this really depends)

the tiamut is worth 1 ep the ring+ 2 ep, maybe 4 if you find right buyer and talos+ worth 1 ep.

So your stuff prob worth more mainly because skills and garg is easier to sell then
tiamut, talos and ring

Thank you very much. I guess I will reject the offer then.

Hello, I've gotten another offer and this one seems better, but I would still greatly appreciate opinions.

Ring Dragon A - 1 ep based on previous answer I think
Blood Blush Vanessa A - 1 ep ?
Aspidochelone A+
Evil Moth A+
Mad Lion Barbarian A+

i wouldn't take it either, evil moth is worth only 1 ep, despite being a psycho demon people use her just for her skill, not as part of a formation; same goes for blood blush vanaessa, though in her case her skill is valued at 3:1ep; aspidochelone+ and mad lion barbarian+ are both unwanted to the point of being impossible to sell, they're both realistically worth 0 ep each.