I'm trying to code a card that allows a player to Pendulum Summon Synchro Monsters. I've looked around for cards with similar effects to learn from them, but I can't find any. Here's the effect.

(Pendulum Effect)
"Once per turn: You can Tribute 1 Tuner monster you control; You can Pendulum Summon Synchro Monsters from your Extra Deck that list the Tributed Tuner as Synchro Material. Destroy all Pendulum Summoned monsters you control during your End Phase."

An example of how I want it to work:
The player's Pendulum Scale allows them to summon monsters levels 2-6. The player Tributes a "Junk Synchron" from their side of the field. They can then Pendulum Summon  "Junk Warrior" (Level 5) from their Extra Deck, but cannot Pendulum Summon "Junk Destroyer" due it its Level being higher than the Pendulum Scale.


EDIT

The problem has been fixed.