Solemn Warning (Green) [DL18-EN019] Rare SM158 You can only use 1

You can only use 1 "Witchcrafter Holiday" effect per turn

Set: Duelist League Promo Card type: Effect Monster Rarity: Rare Attack: 3000 Defense: 2200 If this card is in face-up Attack Position at the beginning of your Battle Phase

You can only use the effect of "Friller Rabca" once per turn

Each of the core booster sets this past season highlighted one of the main Special Summoning mechanics from previous eras of the game

Solemn Warning (Green) [DL18-EN019] Rare SM158 You can only use 1Set: Duelist League Promo Card type: Counter Trap Rarity: Rare Attack: 0 Defense: 0 When a monster would be Summoned, OR when a Spell Card, Trap Card, or monster effect is activated that includes an effect that Special Summons a monster(s): Pay 2000 Life Points; negate the Summons or activation, and if you do, destroy that card.