There arent really any super effective ways to exploit the duplicate system
Like most Magic: The Gathering cards, the value of Tibalt, Rakish Instigator depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Secret Lair Drop)
Bladegriff Prototype isn't bad, but its effect doesn't always help you as much as it helps others, and once a multiplayer game is down to two players, it's basically just your opponent sacrificing permanents, which might not be that impactful in the late game
Holds over 100 cards to make room for proxies and shiz
Power Bracket: Upgraded (3) Designed by EDHCustom 2.5 x 3.5" Same Exact Size Materials: 330gsm Black Core German Cardstock Made to Order: Always Available Whats Included: Complete 100-card Hazel mtg proxy commander deck