The strategy is pretty straight forward
Semi-Limited Branded Fusion Personally, I think this card deserves to be Limited outright
(Damage and effects that say "destroy" don't destroy them.) Instant Protection (CTRL to add secondary) Removal What Must Be Done Choose one Let the World Burn Destroy all artifacts and creatures
Duplicant is representative of Phyrexian Ingester, which can get even bigger and still does the exile job
Same goes for Gaston, Intellectual Power House and Gaston, Baritone Bully, or even Hiram Flavorsham and a couple of items
In 1 Lier, Disciple of the Drowned 4 Smoldering Egg / Ashmouth Dragon 2 Hullbreaker Horror 2 Fable of the Mirror-Breaker / Reflection of Kiki-Jiki (OP) Out 3 Tasha's Hideous Laughter 1 Invoke Calamity 1 Burn Down the House 1 Galvanic Iteration 1 The Celestus (OP) 1 Removal (OP, depends on what's worse vs