Wouldn't 3 attacks + Synthesis be a viable set? I mean Virizion is a wonderful pivot for offensive and balanced teams, so being able to switch in repeatedly as well as still pack a punch with LO and decent coverage would be something no?
CC, Giga Drain / Leaf Blade, HP Ice / Stone Edge and Synthesis would be a good combo of moves. Giga Drain i think is preferable so you don't gett completely screwed if burned by Scald, seeing as you can switch easily into most water types.
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