

Question regarding Guy Gardner and Rao (Absolute Green Lantern #15)
So we see that in issue #15 of AGL that Guy Gardner is able to replicate the Red Lantern acid breath from the main universe by using his stomach acid and body manipulation. But I was under the impression from Issue #8 that Rao (red lanterns) trained under Oa weren't able to attack with their abilities, which is what made Tomar-Re so powerful (that he can attack with Rao powers). So I'm wondering how Guy was able to make this attack, since I thought he was under Oa teachings along with John Stewart (since he was selected by the Abin Sur). So is he not bound by Oa teachings/a Tomar? Or does the stomach acid thing just not count as an attack according to Oa teaching? I'm leaning towards the former rn but I would like some clarification.