Infinite Reflection

If a creature such as Clone is entering under your control, there will be two copy effects to apply: the creature's own and Infinite Reflection's. No matter what order these effects are applied, the creature will be a copy of the enchanted creature when it enters.

If Infinite Reflection enters attached to a creature and then becomes attached to a different creature before its "enters" trigger resolves, each other nontoken creature you control will become a copy of the first creature.

Because creatures you control enter as a copy of the enchanted creature, any "enters" triggered abilities printed on such creatures won't trigger. However, if the enchanted creature has any "enters" triggered abilities, those will trigger.