“Do one of the following” can instead be “Do X of the following” or “Do the following”. The effect will specify which of the related Reflexive Triggers will go on the chain when the condition is met.
§ 387.1.b Core Rules PDF (officieel)
§ 387 Reflexive Triggers are a type of Triggered Ability that create one or more Chain Items when their condition is met.
§ 387.1 Reflexive Triggers can be recognized by the phrase “Do this:” or “Do one of the following:”.
