Gamble [Secret Lair Drop Series] Shadows in Valhalla Trap Card or Effect Monster's

Trap Card or Effect Monster's effect that includes an effect that Special Summons a monster(s)

Set: Sun & Moon: Unified Minds Type: Lightning Rarity: Holo Rare Retreat cost: Colorless

you may reveal it and put it into your hand

Set: McDonald's Promos: 2015 Collection Type: Water Rarity: Promo Retreat cost: Colorless

If that card is a "The Seven Warlords of the Sea" type Character card with a cost of 4 or less

Gamble [Secret Lair Drop Series] Shadows in Valhalla Trap Card or Effect Monster'sSet: Secret Lair Drop Series Type: Sorcery Rarity: Rare Cost: {R} Search your library for a card, put that card into your hand, discard a card at random, then shuffle.