A variant Counterspell, What else?

[Zero T Katama]

How's this?

Aura Protection
1U
Counter target spell targeting an enchantment you control

Aura Fade
1U
Counter target enchantment spell

 

[Istanbul]

Both are overcosted by 1.

 

[Lotus Mox]

compare Aura Fade to Annul.

 

[Zero T Katama]

Ah... Hadn't known of Annul's existance, so...