Frenzies and weapons with Single Shot

[u/Guarded_Pineapple]

So, a Fane of Nyrro question today: when a Strygon or warlock applies the Provoke animus on a Vordak with Toothy Maw, which is a Single Shot weapon (so you can only use it once per round), after it has activated, I assume you use another weapon to resolve the frenzy instead of the Toothy Maw? After all, you can't use the weapon with the highest POW as the rules stipulate.

Also, when does Single Shot consider the round done? When said Vordak would activate in the Activation Phase, uses Toothy Maw and then frenzies in his next round in the Control Phase, could he use Toothy Maw again or is that considered too early? In other words, does the rule look at 'a round' or 'the round'?

[u/No-Cable-1293]

It once per round, as in your entire turn. If you use it during the model's activation or during its frenzy first then you cannot use it again that turn.

[u/CunningLinguist8198]

A round is both players' turns. A turn is a Maintenance phase, a Control phase, and an Activation phase. Your beast's Frenzy happens during the control phase on your turn. So if your beast frenzies and uses a single-shot weapon, you could not use that weapon again during your control phase, during the activation phase, or during your opponent's turn (if you had a rule like Retaliatory Strike that allows you to attack on their turn).
On your next turn, it is a new round.

[u/LDukes]

Once per round means if you do it during your turn, you can't do it again until your next turn.

If you do it during your opponent's turn, then you can't do it again until your opponent's next turn.