How to Evolve Helioptile

To evolve Helioptile, you must use a Sun Stone directly from your bag. There is no minimum level requirement, friendship threshold, or time-of-day restriction. The evolution consumes the item immediately. Because this is a stone evolution, mechanics regarding move-learning change depending on the generation you are playing.

In Generation 6 (X and Y) and Generation 7 (Sun, Moon, Ultra Sun, Ultra Moon), evolving early prevents Heliolisk from learning certain moves naturally. Helioptile learns Thunderbolt at level 35 and Thunder at level 49. If you evolve it at level 20, you must rely on TMs to teach these attacks. In Generation 8 (Sword and Shield) and Generation 9 (Scarlet and Violet), the Move Reminder system was overhauled. You can evolve Helioptile at level 1 and simply use the Pokémon Center or menu Move Relearner to access its entire level-up moveset for free.

Finding a Sun Stone varies by region. In Scarlet and Violet, players can pick them up as sparkling drops in the Asado Desert, win them at the Porto Marinada auction, or receive one for completing the Artazon Gym test. In Sword and Shield, the Digging Duo in the Wild Area frequently excavates them, and they spawn daily at the Lake of Outrage.

Heliolisk operates as a fast offensive pivot and niche weather abuser. We rate it 6.5/10. It excels in lower-tier formats (like Smogon RU or NU) and Draft Leagues where its specific speed tier and typing disrupt common team structures. Its primary role is to force switches, absorb specific attacks, and generate momentum using Volt Switch.

The Normal/Electric typing is rare and highly functional. The Normal typing provides a hard immunity to Ghost-type attacks, allowing Heliolisk to switch safely into Shadow Ball from choice-locked attackers. Offensively, STAB Hyper Voice hits Ground-types and Grass-types that naturally resist Electric moves. Base 109 Speed is its strongest asset, allowing it to naturally outspeed the crowded Base 100 tier (like Charizard and Salamence) and Base 108 threats (like Terrakion and Keldeo).

However, Heliolisk suffers from catastrophic physical frailty. With Base 44 Defense and Base 62 HP, it cannot survive neutral physical hits. Priority moves like Mach Punch, Extreme Speed, or Sucker Punch will frequently score One-Hit KOs (OHKOs). This restricts Heliolisk strictly to a hit-and-run playstyle.

Heliolisk's viability heavily relies on its three abilities: Dry Skin, Solar Power, and Sand Veil. Dry Skin is the optimal choice for 80% of competitive builds. It grants a full immunity to Water-type moves, healing Heliolisk for 25% of its maximum HP when hit by one. Furthermore, it restores 12.5% HP at the end of each turn in Rain. This turns Heliolisk into a hard counter for bulky Water-types like Toxapex, Slowbro, or Milotic. The trade-off is a 25% increase in damage taken from Fire-type attacks and chip damage in harsh sunlight.

Solar Power serves a completely different role as a dedicated Sun Sweeper. In harsh sunlight, Solar Power boosts Heliolisk's Special Attack by 50%, transforming its Base 109 Special Attack into a wall-breaking threat. Coupled with Weather Ball (which becomes a 100 Base Power Fire-type move in the sun), Heliolisk can shred Steel and Grass-types. The drawback is losing 12.5% of its maximum HP every turn, putting it on a strict timer.

Sand Veil increases evasion by 20% in a Sandstorm. This ability is generally banned in competitive formats adhering to the Evasion Clause (like Smogon rulesets) and is too inconsistent for standard ranked ladder play. Avoid it unless running a highly specific gimmick team.

A standard pivot moveset maximizes Special Attack and Speed EVs (252 SpA / 4 SpD / 252 Spe) with a Timid nature. Heavy-Duty Boots or Choice Specs are the preferred items. The core moves include Thunderbolt for reliable STAB, Hyper Voice for secondary STAB that bypasses Substitute, Volt Switch for pivoting, and Surf or Grass Knot for coverage against Ground-types attempting to block Volt Switch.

• Who it is for: Players running Rain or Sun weather cores. Draft League managers looking for a fast, utility-rich Electric-type that brings a Ghost immunity. Players who excel at prediction and double-switching.
• Who it is not for: Players needing a bulky sponge. Teams that struggle with entry hazards and lack hazard removal, as Heliolisk cannot afford to take chip damage before facing priority attacks. Players looking for a setup sweeper, as Heliolisk lacks Nasty Plot or Calm Mind.

When drafting or building around Heliolisk, pair it with bulky physical walls like Corviknight or Slowbro. These teammates can absorb the Ground and Fighting-type attacks aimed at Heliolisk, while Heliolisk can switch into the Electric and Ghost attacks aimed at them.