Select up to 2 “Photon” or “Galaxy” cards in your hand. Then, place them underneath 1 “Galaxy-Eyes” Xyz Monster you control to make them Xyz Materials. This Skill can only be used once per turn and twice per Duel.
So you need:
1-The galaxy trap
1-xyz monster on field
1-photon/galaxy monster
2- photon/galaxy cards in hand.
Basically, 4 four 1.
No thanks. I prefer to try summon gate guardian.
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