[Melee Mewtwo]

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Okay, so I need to keep Giratina so that I can Shadow Sneak Mewtwo and Latios. However, with Tyranitar around he can be revenge killed by Sandstorm. Luckily, Tyranitar is weakened so if I get hazards up I can take it out before it becomes a threat. Ray is to slow too sweep and can't set up a DD anywhere so he is death fodder. I need to get Forry in so I can start setting up Spikes.

Turn 1: Switch to Ray

Okay now Latios could have either weakened Ray with Thunder or Surf, OHKO with Dpulse or set up with CM. If Ray is still alive Latios will need to kill me or risk being swept. Just in case I'm playing a stupid OP, I'll go ahead and DD so I can get a sweep in. Most likely Ray will be dead at the end of the turn so I'll take advantage of that to bring in a full health Forry and set up Spikes.

Turn 2: Ray dies while DDing I bring in Forry.

Worst case scenario, Latios is at +1/+1. Either way, Forry's Sturdy makes sure I get Spikes up so lets do that.

Turn 3: Forry spikes

Either Latios does something stupid and lets me set up another turn of Spikes or it does the smart thing and Surfs. Either way, I'm going to try to Spike again in case it does something stupid.

Turn 4: Forry dies while trying to Spike again.

Wait..... Tyranitar has a SR resist. That means I need to force it in at least once on SR before it dies to SR + Spikes otherwise it will just scrap itself on my Shadow Sneak and bring Tina with it. There is nothing that forces Tyranitar in as Latios has no reason to want to switch out as it can only die to Tina's Sneak. I'm not seeing how to beat this...