Synchro Pendulum that can have Xyz Materials attached

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I hope this counts as an experimental card and has been posted in the right section. Comments on OCG and balance would be greatly appreciated. I plan on using the card on Duel Portal. I made the card on TheProgrammer's TCG Editor, so I very much thank them for the work they put into their card maker.

 

[spoiler='Apodidoun Arpagas'][/spoiler]

 

Apodidoun Arpagas

LIGHT

Level 4/Pendulum Scale 0

Aqua/Synchro/Pendulum/Effect

ATK 1950 DEF 2100

 

Monster effect

 

1 Tuner + 1 or more non-Tuner monsters

You can also Special Summon this card (from your Extra Deck) by shuffling the above Synchro Materials whose total levels equal 4 from your hand into the deck. You can attach the top card from your opponent's deck to this card as a face-up Xyz Material. You can only use this effect of "Apodidoun Arpagas" once per turn. If this card in the Monster Zone would leave the field: You can banish all Xyz Materials attached to this card face-down, and if you do, place this card in your Pendulum Zone.

 

Pendulum effect

 

This card's Pendulum Scale is equal to the amount of cards that are banished face-down by this card's effect. During each of your Standby Phases, your opponent must look at the cards banished face-down by this card's effect and add 1 of them to their hand, and if they do, you draw 1 card.

[Trebuchet MS]

Safe to say, this is incredibly weird. You must understand that Pendulum and Monster effects are separate and thus don't interact with each other, which essentially makes the card's 0-scale unmodifiable. Think of the two text boxes replacing each other as the card moves in and out of the P-Zone.

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Yeah, I thought that might be a problem, but is there any way a workaround can make the effect work? Could it say 'banished face-down by the effect of "Apodidoun Arpagas" ', or something like that, instead?