Changes

'''Optional Monster Effects''' are Trigger Effects that don't happen automatically when the trigger condition is fulfilled - the controlling player decides whether to activate it or not. These effects involve cards like "[[Mystic Tomato]]", "[[Peten the Dark Clown]]", and "[[Dark Magician of Chaos]]".

== Missing the Timing ==

It's possible to miss the timing with Optional Trigger Effects, unlike [[Compulsory]] Trigger Effects. An Optional Effect "misses the timing" when the triggering condition isn't the last effect to happen in the game state, or didn't happen in the last [[Chain Link]] in the current [[chain]].

Most of the time, Optional Trigger Effects can be identified by observing the words, "When...you can..." or "If...you can..." in a monster's effect text.

== Example 1 ==

#Player A controls a "[[Peten the Dark Clown]]".