Blood Mefist [YCSW-EN004] Ultra Rare 132 you can discard 1 card

you can discard 1 card to destroy 1 monster on the field

including cards from Ignition Assault

They're still lands

except Fusion Monsters

If this card is Special Summoned successfully

Blood Mefist [YCSW-EN004] Ultra Rare 132 you can discard 1 cardSet: Yu Gi Oh! Championship Series Prize Cards Card type: Synchro Effect Monster Rarity: Ultra Rare Attack: 2800 Defense: 1300 1 Tuner + 1 or more non Tuner monsters Once per turn, during your opponent's Standby Phase: You can inflict 300 damage to your opponent for each card your opponent controls. Each time your opponent Sets a Spell or Trap Card(s): Inflict 300 damage to your opponent.