After that effect resolves, you can activate a separate Trigger Effect which destroys all other cards on the field
Additional contents include 65 card sleeves, 45 Pokemon TCG Energy cards, a players guide, six damage-counter dice, a competition-legal coin-flip die, two plastic condition markers, and a collectors box with four dividers
It's probably worth playing 1 once Anomalilith comes out in TCG because it's just so good to make, but right now I wouldn't play it
If they search Master Plan regardless, they likely have a way to both get it into the Graveyard from hand and subsequently revive it with SPYRAL Gear - Big Red or SPYRAL Mission - Rescue
What set is Fling from
This page shows current market prices, recent eBay sales, PSA graded values, and price history for this Rare Holo EX card from BREAKthrough