Hearthpwn

I mean, its a value card, and it's effect is insane... its basically that 5 mana 5/5 legendary naga but its a 7 mana 7/7 (a little slower) but with a MUCH stronger effect. It could most definitely see play in some sort of control or midrange pali. Yea if the meta is pure aggro, it might be too slow... if the meta is slow at all, this card is nuts

+Copies
+Deathrattles always trigger
-Only attack minions
-Don't Live After
-Die immediately instead of end of turn, preventing you from evolving minions to save them
-10 mana, so you've already played most things

In summary - garbage

i think this card probably wont be a classic turn 7 play. I guess its most likely played at 10 mana with the instant use of 1 invitation. Then ofc it depents on how good your legendary choices are.

Any chance for a description of linked cards for these ones that have them?

Colossal cards suffer from this lack of info as well.

2 pounce, 2 Feral rage, 2 moontouched amulet, 2 Park panther....then just some random hero powers and you have completed the quest. Then use Mark of the Spike Shell for extra Guffs. Seems like a fun deck to me.