My partner and I recently played in a Two-Headed Giant Sealed. As is the case with most multiplayer tournaments, the event was run at Regular REL. My partner has an upkeep trigger (Thopter Spy Network). The following events occur sequentially:
- Our opponent's pass the turn.
- I untap, draw a card, and mix it into my hand.
- My partner says, "Wait! I have an upkeep trigger."
Has the trigger been missed?
805.2. Within each team, the player seated in the rightmost seat from that team’s perspective is the primary player. If the players on a team can’t agree on a choice, such as which creatures attack or what order triggered abilities are put on the stack, the primary player makes that choice.
Comprehensive rule 805.2 states that if players on a team can't agree on a choice, the primary player decides. However, we didn't really disagree on anything, so I don't think 805.2 applies. I reference this rule because I have moved to the draw step, while my partner wants to remain in the upkeep step. I guess one could argue that I silently disagreed with him by drawing a card.