As it is, its a 4/4 First Striking regenerator that can attack every second turn for 4 mana. I think that's pretty fair. Giving it vigilance as well would require upping the cost as a 4/4 First Strike Regenerator that can attack AND block every turn for 4 mana is kinda strong.
Yeah I was really lucky to come across it totally by chance when I was searching for a different image, it was perfect for the card.
Seems fine. The art is impressively Magic-style-Merfolk for some random dA image.
Plus, run it with Voltaic Key et al and its fine.
As it is, its a 4/4 First Striking regenerator that can attack every second turn for 4 mana. I think that's pretty fair. Giving it vigilance as well would require upping the cost as a 4/4 First Strike Regenerator that can attack AND block every turn for 4 mana is kinda strong.
To make this card playable i really think you should give it Vigilance, that would make the second effect more intresting.
Bugger - Glad you like the design though.
Sadly the name Avatar of Might is taken. Very nice design otherwise though.
Considered making this cost

to justify the Haste and major beats this can inflict (which just isn't blue).
reset to a 4/4 with the new text