
[SET]
name: Steelium Z
move 1: Flash Cannon
move 2: Lava Plume / Magma Storm
move 3: Earth Power
move 4: Stealth Rock / Taunt
item: Steelium Z
ability: Flash Fire
nature: Modest
evs: 252 SpA / 4 SpD / 252 Spe
[SET COMMENTS]
Moves
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Flash Cannon hits Tyranitar and Latios hard, 2HKOing offensive variants of both. The most important aspect of Flash Cannon is that it lets Heatran use Corkscrew Crash, which OHKOes Pokemon that check Heatran such as Mega Alakazam and Gliscor, as well as Zygarde and Mega Latios after Stealth Rock damage. Lava Plume is a safe Fire-type STAB move that inflicts a good amount of damage on various foes thanks to Heatran's offensive investment. Lava Plume's decent chance to burn foes can help to make up for this set's lack of other utility moves such as Toxic. Magma Storm trades Lava Plume's reliability and ability to spread burns for a stronger Fire-type STAB move that lets Heatran trap passive foes like Toxapex and Chansey and disable them with Taunt and remove them. Earth Power targets Toxapex and opposing Heatran, and the coverage against the latter is especially crucial, as Heatran doesn't have any other feasible way to inflict notable damage to opposing Heatran. Heatran's ability to force switches against common entry hazard setters like Ferrothorn, discourage Defog users like Landorus-T and Kartana to recklessly switch in, and KO or heavily damage other Defog users like Gliscor and Tornadus-T makes it an effective Stealth Rock user. Taunt can be employed to improve Heatran's ability to trap and remove passive foes with Magma Storm if its team already has an appropriate Stealth Rock user.
Set Details
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Maximum Special Attack investment with a Modest nature maximizes Heatran's damage output, letting Corkscrew Crash always OHKO Gliscor and deal as much damage as possible to foes like Mega Latios and Tyranitar. A Timid nature is an alternative option to at worst Speed tie with opposing Heatran, but the cost of missing the OHKO against Gliscor and having a lower damage output is not worth it. Steelium Z allows Heatran to use Corkscrew Crash with Flash Cannon, enabling it to harshly punish its offensive checks by heavily damaging or KOing them. Heatran can utilize Flash Fire to switch into predicted Fire-type moves and boost the power of its Fire-type attacks.
Usage Tips
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Unlike other variants, Steelium Z Heatran can OHKO its usual checks like Mega Alakazam, Mega Latios, and Gliscor on the switch with Corkscrew Crash, so do your best to not waste the Z-Move on the wrong target. If using Magma Storm, Heatran can act offensively early-game to cause serious damage to opposing teams. Thanks to Heatran's offensive investment, this set has a narrow array of checks available. Even if Heatran has trapped a foe that it must avoid, Magma Storm's general damage output and trapping damage will considerably wear them down and prevent them from switching out, giving Heatran a chance to create a favorable matchup for one of its appropriate teammates. Lastly, Heatran lacks durability with offensive investment, so avoid playing too recklessly.
Team Options
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Grass-types like Tangrowth and Tapu Bulu can defensively check Ground-types like Zygarde, which Heatran must avoid facing at all times. Both of these Pokemon are also good checks to Water-types like Ash-Greninja and Keldeo and can pivot into Tapu Koko, which can overwhelm Heatran quite easily due to Heatran's lack of bulk investment. Clefable benefits from Heatran's ability to pressure Steel-types. Variants of Clefable with Wish can extend Heatran's longevity and thus facilitate its wallbreaking efforts and its ability to pivot into Fairy-types throughout the match. Other Steel-types like Ferrothorn and Magearna can check Magearna and Tapu Lele. Furthermore, Ferrothorn's access to Spikes entices Defog users like Tornadus-T to switch in frequently, giving Heatran more opportunities to land an attack. Magearna can provide Heatran with a safer opportunity to switch in thanks to Volt Switch, and this is especially valuable considering how offensive Heatran would rather stay as healthy as possible to maximize its ability to wallbreak and combat its checks. Offensive threats like Ash-Greninja and Hawlucha can massively benefit from Heatran's wallbreaking power and Stealth Rock support.
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