Corrosive Mentor [Shadowmoor] XY77 and/or an effect that Special

and/or an effect that Special Summons a monster(s) and destroy those cards

You can only use each effect of "Guardian Slime" once per turn

Do you love Warhammer and hate getting a good night’s sleep without the promise of nightmares

If "Toon World" on the field is destroyed

Set: Shadows in Valhalla Card type: Normal Spell Rarity: Secret Rare Special Summon any number of “Valkyrie” monsters with different names from your hand

Corrosive Mentor [Shadowmoor] XY77 and/or an effect that SpecialSet: Shadowmoor Type: Creature Elemental Rogue Rarity: Uncommon Cost: {2}{B} Black creatures you control have wither. (They deal damage to creatures in the form of 1 1 counters.) Guttering cinders stoke their dying flames by snuffing out the lights of others.