Once per turn: You can discard 1 card, then target 1 level 4 or lower "lightsworn" monster in your graveyard; Special summon that target. During each of your end phases: Send the top three cards of your deck to the graveyard. You must control this face up card to activate and to resolve this effect.

Is it just me or is this card to good. You can spam the field, otk, set up the field, lots of xyz plays, and with the new support even make huge synchro plays. This card is just amazing. But what I was wondering is can you use her effect if you have no lightsworns in hand or grave? Can you use the effect just to discard?

No, you have to have a lightsworn in grave in order to attempt to activate the effect. However, if you have a lightsworn in grave, let's say ryko, and you discard Lyla for cost, you can special summon the Lyla you discarded. In order to attempt to activate the effect, you have to have a target already in the graveyard though.

Thanks for clearing that up