buyback cards mtg Slaughter - Exodus #74 (English) Can I reduce the cost

Ive always felt fight effects could be White, especially ones that count on the number of creatures under your control (as opposed to how big they are)

It gains vigilance (Attacking doesn't cause this creature to tap.) and trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) until end of turn

Each draft booster has a rare or mythic rare card and a 33% to have a foil card

Sisay seemed like the perfect choice

Jacques le Vert Rarity: Rare TYPE: Legendary Creature SUBTYPE: Human Warrior CMC: 4 Mana cost: USD: $25.79 EUR: 24.87 TIX: 0.00 EDHREC RANK: 27828 (3/2) Green creatures you control get +0/+2

Perhaps you can help me in changing that