Birkal
We have the technology.
Hmm. I am actually against physical Ice-type moves. Hydreigon is meant to be a reliable check; it would lose that role if CAP2 were given these moves. Let's take a look at the list:
Ice Fang
Ice Shard
Ice Punch
Icicle Spear
Icicle Crash
If one is running Life Orb Adamant 252 Shift Gear CAP2, then these become especially problematic for 0/0 Hydreigon. After one boost, Icicle Crash is a clean OHKO after Shift Gear, with Ice Punch following suit. Ice Fang is pretty darn close to a OHKO (96.6% minimum) as well. It only takes three hits from Icicle Spear to OHKO, which is usually quite probable.
That leaves Ice Shard: it only does 59.1% - 70.2% after the Shift Gear boost. However, one could simply choose not to boost on the Hydregion switch and use Ice Shard (39.4% - 46.8%), which has a good shot of 2HKOing after Stealth Rock. Not exactly what we want, in my opinion.
Furthermore, I feel like Ice-type moves in general make CAP2 a little too threatening to OU as a whole by making CAP2 even more versatile. While Gliscor, Dragonite, and Salamence could safely check some sets, adding an Ice-type move removes that possibility. Grass / Ice is already pretty darn good coverage (try out Abomasnow sometime, it's a blast). Being able to add a third element into that mix through Ghost STAB, Hidden Power Fighting, Fire, or Ground, alongside of Sketch makes for a Pokemon that's a bit to threatening for my tastes.
Just my two cents!
Ice Fang
Ice Shard
Ice Punch
Icicle Spear
Icicle Crash
If one is running Life Orb Adamant 252 Shift Gear CAP2, then these become especially problematic for 0/0 Hydreigon. After one boost, Icicle Crash is a clean OHKO after Shift Gear, with Ice Punch following suit. Ice Fang is pretty darn close to a OHKO (96.6% minimum) as well. It only takes three hits from Icicle Spear to OHKO, which is usually quite probable.
That leaves Ice Shard: it only does 59.1% - 70.2% after the Shift Gear boost. However, one could simply choose not to boost on the Hydregion switch and use Ice Shard (39.4% - 46.8%), which has a good shot of 2HKOing after Stealth Rock. Not exactly what we want, in my opinion.
Furthermore, I feel like Ice-type moves in general make CAP2 a little too threatening to OU as a whole by making CAP2 even more versatile. While Gliscor, Dragonite, and Salamence could safely check some sets, adding an Ice-type move removes that possibility. Grass / Ice is already pretty darn good coverage (try out Abomasnow sometime, it's a blast). Being able to add a third element into that mix through Ghost STAB, Hidden Power Fighting, Fire, or Ground, alongside of Sketch makes for a Pokemon that's a bit to threatening for my tastes.
Just my two cents!