Nice idea.
I recommend changing the upped to 8

, why:
7/7 is very close to Phase dragons stats, phase dragon with immaterial and 8/6 costs 13

!
This would be way too cheap as

5, I recommend to raise to 8 or leave it at 7

cost to balance the ease of using the card.
unless, you lower defense (like say to 4 on the upped aswell) since its ability consists of target evasion, then the cost of 5

would be more reasonable.