Autotune
(Return) instead of (Play)
Sigillum
"+16 power" instead of "+18 power"
Bothriolepis
"+15 for 3 turns" instead of "+15 until played"
Or
"16 collections" instead of "14 collections"
*keep the +15 perm power in both cases
Funeral Bell
"Your other cards everywhere" instead of "Your other cards in hand" lose -10 power until played
*maybe -15 ???
Cartorhynchus
(Return) instead of (Play)
Argentavis
*Why this card exist? A 3 cost card the gain +60 perm power just for being played...I suggest as a condition in adction to its current ability:
(Return) For every non-Fearsome Flyers card in your hand, this card loses -5 power permanently.
*maybe -10 ???
Cao Pi
"4 or more" instead of "3 or more"
*this will make it playable with TWT so maybe make it a "Play" instead of "Draw" could help a bit.
Tamarin
*I really like tamarin and don't think it needs a nerf. Once all the above cards got adjusted Tamarin could become fair...I guess