destroy it, also, during your Main Phase this turn, you can conduct 1 Pendulum Summon of a D/D monster(s) in addition to your Pendulum Summon
With your Orc Army on the battlefield, the easiest way to keep discarding and drawing cards is to give it some kind of evasion
Cloven Casting Cloven Casting might look expensive at 7 mana, but once its on the board, it turns every multicolored instant or sorcery into a double threat
Source: Magic: The Gathering Magic: The Gathering Arena Released September 27, 2018 ESRB T for Teen // Blood and Gore, Mild Fantasy Violence Developer(s) Wizards of the Coast, Wizards Digital Games Studios Publisher(s) Wizards of the Coast Franchise Magic: The Gathering Platform(s) PC, Android, iOS Genre(s) Digital Card Game
6 years ago I played both of these cards by the end of a match, and technically that match is still going up to this day