mtg 2021 booster box Magic The Gathering Card Pack, 15 Cards, Assorted Each pack includes 11 foils and at least 7 cards with special art treatments Magic the Gathering - Core

Delve has been printed on creatures, instants, and sorceries so far, and we could see it on other permanent types in the future, but Teval, Arbiter of Virtue gives it to all your spells

Reduced Mana Cost: His Elder Sign effect reduces the cost of the next weapon he plays by 2 during the round it was revealed in

If a card your opponent owns and possesses is banished face-down while you control this card (except during the Damage Step): You can banish cards from the top of your opponent's Deck, face-down, equal to their face-down banished cards

If you want to do some really silly things, you could always try effects like Warp World

3 news article here.

C Common Ballista Squad X TRAP Tribute 1 monster, then target 1 card your opponent controls