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Term: Enigma Rulings
If I use an Enigma to combine my characters into the Combiner, can I then use the card’s first
ability to get its effect?

No. You always follow the instructions on the card in order. If you don’t already have the specified Combiner on the battlefield, the first ability won’t do anything.
Source: Wizards of the Coast (2019-03-01)    【Link to Ruling】
Tags: Enigma