Phonon/Sonicboom

[Yeelp]

NAME: Phonon ELEMENT: Air COST: 4 TYPE: Creature ATK|HP: 1 | 2 TEXT: : Shockwave Deal 1 damage to this creature. Deal 4 damage to a target. Instantly kill if frozen.	NAME: Sonicboom ELEMENT: Air COST: 3 TYPE: Creature ATK|HP: 1 | 3 TEXT: : Shockwave Deal 1 damage to this creature. Deal 4 damage to a target. Instantly kill if frozen.

ART: Bunny177 IDEA: Yeelp NOTES: DISCLAIMER:I don't own the art. It's merely a placeholder since I can't make any art whatsoever. If anyone has better art or would like to use their art for this let me know. You'll be credited. This card gives Air some better creature control. This card can be combined with Arctic Squids, and Purify for some solid creature control. I liked how there was a Photon already in the game so I decided that it would be fit to add a Phonon. SERIES: N/A

Main Questions:

How could this card be less overpowered and still keep the Shockwave effect? (Making it rare?, higher cost?, different stats?)

Should the effect deal damage to the Phonon/Sonicboom, or should it delay it for X turns? OR, should it delay the unupped version and damage the upped version (or vice versa)?

Should it have 0 hp instead? (Thus forcing you to use momentum/blessing in order to keep it on the field.)

[kaempfer13]

I dont think this card is op at all. In fact flying eagles eyes are way better in a mono and in a duo I would say that otyugh+SoP is more powerful than this + purify and arctic octopus (also it requires a 3 card combo and is way more vulnerable to creature control). I would go so far to say that this card is balanced at a play cost of around 3 .
Ah yes and rarity is not really supposed to make cards more powerful. The card balance theory is the same for rare and common cards, however rare cards often happen to have better synergies.

[Yeelp]

Funny as I had originally thought of making the Phonon 4 and the Sonicboom 3

[Yeelp]

Any other suggestions?