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PSE Prismatic Secret Rare Chimera the King of Phantom Beasts X WIND Level 6 [ BeastFusionEffect ] ATK 2100 DEF 1800 1 Beast monster + 1 Fiend monster This card's name becomes "Chimera the Flying Mythical Beast" while on the field or in the GY

It seems somehow impure or greedy to use artifact ramp when you have the green ramp effects at your disposal

You can target 1 face-up card your opponent controls and 1 Attack Position monster you control

As you can see the maindeck is mono-red and early on I was swinging back and forth between playing green and black in the sideboard

and Jagantha, the Wellspring, which will also reduce the dominance of Boros Energy