can gideon, champion of justice ability be activated on opponents turn

can gideon, champion of justice's ability be activated on opponent's turn?

...why would he behave any differently to any other planeswalker?

Was talking about the "free" ability (one that costs 0 loyalty)

Again - why would it behave any differently? Planeswalker abilities can only be activated any time you could cast a sorcery (meaning, in part, only on your turn). That's true no matter how much loyalty it costs.

Okay. And, as Arix said, all of Gideon, Champion of Justice's loyalty abilities work precisely the same as any other planeswalker's loyalty abilities. It doesn't say otherwise, so why would it work differently?

Loyalty abilities of a permanent can only be activated during the main phase of your own turn, while you have priority and the stack is empty.

ok thanks... haven't used planeswalkers much yet so didnt remember the rules for them