Even if you would have multiple MPAs or the out of turn would be a trifle, you can still never play more than one oot master between your two turns ever.
See 1.6.2.4 in the rulebook
> Out-of-turn: You may play an out-of-turn master card whenever appropriate during another player's turn. Doing so counts against your next master phase (see Master Phase, sec. 5). You cannot play a second out-of-turn master card before your next master phase. You cannot play an out-of-turn master card on your own turn.
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Prince of Paris, France
Ratings Coordinator, Rules Director
> cofius wrote:
> Can after one out of turn master card, be played another one out of turn master? Thank you...
>
Not by the same player, between two of their Master phases (even if the first one was cancelled somehow, or Trifle, ..)
Two different Methuselahs can play M:OoT masters in the same turn (which is what happens when you Sudden your predator's DI on her predator's Parity Shift).