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Set: Rise of the Combiners
Megatron - Arrogant Ruler’s ability says "If you flip to this mode you may play an upgrade”, Does this include all Superior Upgrades? (Jetpack, Plating, Cannon, etc.)
Yes, but only if you’ve already played Tech Research. Megatron’s ability doesn’t get around that requirement.
Source: Rules Roundup 2019-03-15