yugioh sky fire deck Complete Custom for Yu-Gi-Oh! Is it possible to fix

The monster on the field will assume the level of the discarded one for the remainder of the turn

Polymerization X SPELL Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters from your hand or field

Once per turn (Quick Effect): You can target 1 face-up monster on the field that was Special Summoned from the Extra Deck

You can only use this effect of "Destiny HERO - Denier" once per turn

C Common Cyber Dragon Drei X LIGHT Level 4 [ MachineEffect ] ATK 1800 DEF 800 This card's name becomes "Cyber Dragon" while on the field or in the GY

banish both this card and 1 card from your hand, then place that target on top of the Deck