Dragunity Senatus [CYHO-EN016] Super Rare Holy Dragon/Four Great Dragons/Four Sovereigns reduce its play cost by

reduce its play cost by 1 for each [Three Musketeers] Digimon card and Option card with a memory cost of 7 in your trash

If this card that was Fusion Summoned using "Salamangreat Violet Chimera" as material battles a monster

Each booster has a theme

Set: Savage Strike Card type: Effect Monster Rarity: Super Rare Attack: 1400 Defense: 1400 During your Main Phase: You can excavate the top cards of your Deck equal to the number of other "Valkyrie" monsters you control

Dragunity Senatus [CYHO-EN016] Super Rare Holy Dragon/Four Great Dragons/Four Sovereigns reduce its play cost bySet: Cybernetic Horizon Card type: Effect Monster Rarity: Super Rare Attack: 1800 Defense: 600 You can discard 1 "Dragunity" card; equip 1 Dragon "Dragunity" Tuner from your Deck to this card, also, you cannot Special Summon monsters from the Extra Deck for the rest of this turn, except Dragon monsters. You can only use this effect of "Dragunity Senatus" once per turn. If a "Dragunity" card(s) you control would be destroyed by battle or card effect,