Let's say i have Deathstroke (From crisis) on it's first click and with one token, i use Outwit to counter the defense ability of a opposing figure "X" on his range and make an attack... bla bla bla... after the action resolves and Deathstroke recive the second token and gets pushed he lost Outwit and gains "Master Tactician", the question is, can Deathstroke use "Master Tactician" to counter a Power the same turn he attacks and gets pushed even he already used Outwit?

MASTER TACTICIAN: Deathstroke can use Outwit. Modify Deathstroke attack value by +1 for each adjacent opposing character. When Deathstroke makes a close combat attack, he can compare the attack roll to the defense value of any number of adjacent opposing characters (minimum 1); the damage dealt by the attack can be divided in any way among the successfully hit targets provided that all damage dealt is divided among them.

That's fine. It is a new power.

(The effect of the first OW ends, btw.)