Renown?

[VQMracing]

Quick question, say somebody deals combat damage to a player with a renown creature, and the player forgets to put a +1/+1 countrr, is it a trigger that can be missed? Or is it a trigger that has to be done even if you miss it? (Like drawing a card)

[Kaylesh]

If you move on after the end of combat phase (eg, pass your turn or cast a sorcery/creature during your second main phase), the trigger is "missed".
In this case, since the trigger doesn't involve zone changes or has a "unless" clause (think upkeep costs), the opponent chooses if the ability still happens.
If not, the creature will not become renowned, does not get the counters, and any other effect will not happen.
It could get renowned next time it deals combat damage to a player.

Source: http://wiki.magicjudges.org/en/w/Annotated_IPG/Missed_Trigger

[Kaylesh]

Even saying "trigger" in this instance would most likely be insufficient. From Kaylesh's link:

• A triggered ability that causes a change in the visible game state (including life totals) or requires a choice upon resolution: The controller must take the appropriate physical action or make it clear what the action taken or choice made is before taking any game actions (such as casting a sorcery spell or explicitly moving to the next step or phase) that can be taken only after the triggered ability should have resolved.
These are triggered abilities that first matter at resolution. In order to avoid missing these triggers, the controller of these abilities must remember to make the choice or take the visible action when the trigger would resolve (or prompt the opponent to do so).

The way I read this is even if you say "trigger renown," failing to put the counter on results in a missed trigger ("controller . . . must remember to . . . take the visible action when the trigger would resolve . . ..").

If you say trigger renown it resolved, and the counters are on the creature, even if not represented by a visual reminder.
If that would be the case it would be a different infraction. (If any). Failure to maintain game state comes to mind, but IMNAJ.