Using an Ability : If you have a character in play that isnt exerted, or you play an item, you can then play the ability on the card for any cost detailed on it
The difference is that while they have an ink cost on them, there is also an extra block of text in the description area of the card which details that you can exert a character (turning them sideways and opening them to attack) of a minimum cost in order to play the song card for free
However, the next set for the Disney game, Ursulas Return, will feature cards that will allow players to Shift their characters without paying an ink cost
The regular Ursula double-crosses her doppelgnger and seizes the trident to rule Lorcana alone
Heres what to look for
Several cards featured in Ursulas Return - including Ursula, Erics Bride and Diablo, Devoted Herald - feature the Shift keyword but allow players to avoid paying ink altogether, in exchange for players having to discard a certain type of card/s to pay to shift them in instead