I feel like the people using Virizion defensively are doing it wrong. Sure, it can actually be a hard counter to some pokemon. But I feel like it's much better as an offensive mon instead of a defensive one. It should use its typing to set up Swords Dances so it can smash through its counters instead of just gradually losing health while it tries to set up. Blissey is going to come in and cripple you, it's not scared of a +1 Focus Blast. Giga Drain is not a great move, and Focus Blast is even worse. It also has a troll speed tier below Lati@s and the wind genie, which sucks with all the rain teams. It's a good sweeper but it's just not strong enough to sit around CMing against an offensive team.