On ADV Tyranitar:
After working with it awhile, I think it should be moved below Regirock. Whether this means Regirock moves up, or Tyranitar moves down doesn't matter to me.
Tyranitar's small advantages over other rocks seem to be more impractical the more I use it and Regirock proven that what it does is useful enough to end up on a sample team.
The choice-less sets Tyranitar sets I have been working with all utilize Tyranitar's superior offenses and special movepool, but that doesn't help it much in getting passed the biggest problem rocks have: Groudon. Tyranitar still needs Spikes support to do remotely enough damage to be useful against Groudon teams. Toxic sets are OK because Tyranitar scares steels but punishing steels and rocks with Kyogre or Groudon is usually a more practical source of damage anyways; Toxic just being a small perk when you know Groudon is coming in. One can even argue that Regirock uses Toxic better because of its massive bulk and Explosion's ability to chunk steels for damage that is almost always permanent. Keep in mind that it still has the option of switching into Groudon or Ho-Oh to scare off steels if exploding is undesirable.
Choice Banded Tyranitar does have a notable advantage over Regirock in that it actually takes less Rock Slide hits to KO Kyogre with heavy investment in HP and gives Latias a larger advantage when it comes in afterwards. In the same vein, its Rock Slide does way more to Snorlax than Regirock's and even chunks steels for useful damage without having to rely on Earthquake whereas Regirock's Rock Slide is rather mediocre against most of these targets. Both of them are at their weakest against Groudon with Regirock having the threat of Explosion and Tyranitar relying on choice locked Toxic or Roar / Earthquake + Spikes to deal meaningful damage to it for its teammates. Something I haven't experimented with on Tyranitar is Body Slam to potentially paralyze Groudon, but that should invite in other large problems all while relying on a 30% roll to really punish Groudon.
The biggest separator between the two is that Tyranitar is always scared of Deoxys-A unless it is confirmed Choice Band and locked into anything but Superpower while Regirock only scared of Deoxys when it is weak. This makes teams with Tyranitar rather uncomfortable against Deoxys even with a Groudon and a Ho-Oh partner. Sub Petaya Deoxys is what Tyranitar teams are scared of most unless the Spikes user is a Deoxys-D. Deoxys-A has to rely on an unreliable Thunder against Tyranitar and its Ho-Oh partner, but it is still in favor of the Deoxys to KO the Ho-Oh. the boon of Tyranitar is that activating Petaya Berry is rather uncomfortable due to sandstorm which will make its attacks weak enough to take on effectively, but this is not always the case. A Regirock in good health will never be afraid of any Deoxys-A, even if it subs down to eat its Petaya Berry.
Regirock is more comfortable against many dangerous Pokemon, not just Deoxys-A, than Tyranitar and doesn't require near as much outside support to function in my experience. Like I said, I really don't care whether Regirock moves up or Tyranitar moves down, but Tyranitar being above Regirock definitely looks wrong to me.
After working with it awhile, I think it should be moved below Regirock. Whether this means Regirock moves up, or Tyranitar moves down doesn't matter to me.
Tyranitar's small advantages over other rocks seem to be more impractical the more I use it and Regirock proven that what it does is useful enough to end up on a sample team.
The choice-less sets Tyranitar sets I have been working with all utilize Tyranitar's superior offenses and special movepool, but that doesn't help it much in getting passed the biggest problem rocks have: Groudon. Tyranitar still needs Spikes support to do remotely enough damage to be useful against Groudon teams. Toxic sets are OK because Tyranitar scares steels but punishing steels and rocks with Kyogre or Groudon is usually a more practical source of damage anyways; Toxic just being a small perk when you know Groudon is coming in. One can even argue that Regirock uses Toxic better because of its massive bulk and Explosion's ability to chunk steels for damage that is almost always permanent. Keep in mind that it still has the option of switching into Groudon or Ho-Oh to scare off steels if exploding is undesirable.
Choice Banded Tyranitar does have a notable advantage over Regirock in that it actually takes less Rock Slide hits to KO Kyogre with heavy investment in HP and gives Latias a larger advantage when it comes in afterwards. In the same vein, its Rock Slide does way more to Snorlax than Regirock's and even chunks steels for useful damage without having to rely on Earthquake whereas Regirock's Rock Slide is rather mediocre against most of these targets. Both of them are at their weakest against Groudon with Regirock having the threat of Explosion and Tyranitar relying on choice locked Toxic or Roar / Earthquake + Spikes to deal meaningful damage to it for its teammates. Something I haven't experimented with on Tyranitar is Body Slam to potentially paralyze Groudon, but that should invite in other large problems all while relying on a 30% roll to really punish Groudon.
The biggest separator between the two is that Tyranitar is always scared of Deoxys-A unless it is confirmed Choice Band and locked into anything but Superpower while Regirock only scared of Deoxys when it is weak. This makes teams with Tyranitar rather uncomfortable against Deoxys even with a Groudon and a Ho-Oh partner. Sub Petaya Deoxys is what Tyranitar teams are scared of most unless the Spikes user is a Deoxys-D. Deoxys-A has to rely on an unreliable Thunder against Tyranitar and its Ho-Oh partner, but it is still in favor of the Deoxys to KO the Ho-Oh. the boon of Tyranitar is that activating Petaya Berry is rather uncomfortable due to sandstorm which will make its attacks weak enough to take on effectively, but this is not always the case. A Regirock in good health will never be afraid of any Deoxys-A, even if it subs down to eat its Petaya Berry.
Regirock is more comfortable against many dangerous Pokemon, not just Deoxys-A, than Tyranitar and doesn't require near as much outside support to function in my experience. Like I said, I really don't care whether Regirock moves up or Tyranitar moves down, but Tyranitar being above Regirock definitely looks wrong to me.