Edison format ruling
Freezing Beast
Card effect (current official text)Once per turn, during your Main Phase, if you control this monster on the field, you can equip it to your "Burning Beast" as an Equip Spell Card, OR unequip the Union equipment and Special Summon this card in face-up Attack Position. While equipped to a monster by this card's effect, each time the equipped monster inflicts Battle Damage to your opponent, destroy 1 face-down Spell or Trap Card on the field. (1 monster can only be equipped with 1 Union Monster at a time. If the equipped monster is destroyed as a result of battle, destroy this card instead.)
Rulings
(1) Once per turn, during your Main Phase, if you control this monster on the field, you can equip it to your Burning Beast as an Equip Card, OR unequip the Union equipment and Special Summon this card in face-up Attack Position. (2) While equipped to a monster by this card's effect, each time the equipped monster inflicts Battle Damage to your opponent, destroy 1 face-down Spell or Trap Card on the field. (C) (1 monster can only be equipped with 1 Union Monster at a time. If the equipped monster is destroyed as a result of battle, destroy this card instead.)
- You may use the effect of Freezing Beast to destroy a Spell or Trap Card on your side of the field.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.