Your search for "Wattcancel LART-EN068" revealed the following:
Wattcancel - LART-EN068 - Promo - Limited Edition from The Lost Art Promotion, available at 401 Games Canada. Rarity: Promo Card Text:When your opponent would Normal or Special Summon a monster(s). Discard 1 "Watt" monster, negate the Summon and if...