Solemn Warning (PUR) (RA02-EN078) - 25th Anniversary Rarity Collection II 1st EditionPrismatic Ultimate Rare

When a monster(s) would be Summoned, OR when a Spell/Trap Card, or monster effect, is activated that includes an effect that Special Summons a monster(s): Pay 2000 LP; negate the Summon or activation, and if you do, destroy it.