Solemn Warning (Green) [DL18-EN019] Rare SM158 Set: Metal Raiders Card type:

Set: Metal Raiders Card type: Normal Monster Rarity: Common Attack: 1400 Defense: 1200 A dragon commonly found guarding mountain fortresses

Set: Pendulum Evolution Card type: Pendulum/Tuner/Effect Monster Rarity: Super Rare Attack: 700 Defense: 1400 Cannot be used as a Synchro Material

Set: XY: Flashfire Type: Psychic Rarity: Holo Rare Retreat cost: Colorless

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

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

Solemn Warning (Green) [DL18-EN019] Rare SM158 Set: Metal Raiders Card type:Set: 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.