Ambush and He Calls it Thinking

By Lethuin, in 2. AGoT Rules Discussion

If a Targ deck goes to use Ambush, can I 'He Calls it Thinking' to cancel it? Or does the influence-as-gold count as an influence cost?

Lethuin said:

If a Targ deck goes to use Ambush, can I 'He Calls it Thinking' to cancel it?

Keyword effects with a point of initiation
(such as ambush) cannot be canceled.

Ah, thanks Rogue!

Not to mention that Ambush has an influence cost, and is not a response.

Ahah! I knew it!