Hi all, just checking, apologies if obvious. Cancel event cards, like Voice of Honour, can that cancel events that are reactions, like For Greater Glory?

Voice of Honor (and Forged Edict, and others) cancel the effects of an Event.

It doesn't state that it checks the type of Triggered Condition (Ability, Reaction, Interrupt), so For Greater Glory can get its effects cancelled.

thank you Bayushi

I saw posted elsewhere, that once FGG is cancelled, a second FGG cannot be played, as even if its unsuccessful it counts in the once per conflict limit

Under Max X per [period] in the Rules Reference. (And a similar rule is in place for Limit).

Quote

If the effects of a card or ability with a maximum are canceled, the use of the card or ability is still counted against the maximum.