During OP-04, this version of Doflamingo was introduced alongside plenty of Donquixote Pirate cards, but due to its color combination of green/purple, the optimal way to play this leader is by combining OP-02 FILM type green cards with purple cards found in ST-05
The steep canyon walls add a lot of dramatic depth to the picture
After all, it's unbelievably easy to draw three cards in one turn when there's access to Brainstorm, Lorien Revealed, and all the other cantrip effects in the format
Downside: this will be a manual work, card after card, so without serious manpower involved, it's not gonna happen anytime soon
1 It has base toughness 1 until end of turn
They recently allowed local stores to sanction whatever format their local players wanted to play