The way to play Luffy is simple, put two minions each turn if possible and try to overwhelm your opponent
That paired with R&D's realization that including Masterpieces for every set would reduce their overall quality meant that Masterpieces were put on hiatus and the Ixalan block was released without them
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This card feels more like a standalone art piece than anything else, which is astounding
The downside is still a Goblin Electromancer that occasionally pings you for damage, but the upside is flipping this planeswalker into Ral, Leyline Prodigy, a fairly tame walker that preserves the front side's cost reduction and adds in some other forms of disruption
Of course, you might force yourself into a situation where you have to cast a spell, so be sure to bolster a reasonable board presence before running this out