- Resonance: XX(/YY) (When Attacks) You can reveal a card from your decktop. If that card is "XX"(/"YY")-named, you can summon/deploy it without paying the cost. Discard any remaining card.
Resonance can be considered an improved version of Friend, both effects being able to summon Spirits from the top of the deck, with Resonance better as it also deploys Nexuses and most importantly, summon/deploy in refreshed state. The name of the keyword is a flavor to the Divas performing together in the same band.