How to Evolve Chansey

To evolve Chansey into Blissey, you must raise its Friendship stat to a specific threshold and level it up once. In Generation 8 and later, the required Friendship value is 160. For older generations, the threshold sits at 220.

Equipping Chansey with a Soothe Bell boosts all Friendship gains by 50%. The fastest method to max out this stat involves feeding Chansey EV-reducing berries, such as Pomeg, Kelpsy, Qualot, Hondew, Grepa, or Tamato berries. Each berry increases Friendship while lowering specific Effort Values.

Alternatively, keeping Chansey in your active party while walking, winning battles, and using the Picnic or Pokémon Camp features will steadily increase its Friendship. Avoid letting Chansey faint in battle, as fainting reduces the Friendship stat and delays the evolution process.

Before you trigger the evolution, consider the competitive implications. As an unofficial fan-site, Pokedex.me highly recommends evaluating the Eviolite item. Eviolite boosts the Defense and Special Defense of not-fully-evolved Pokémon by 50%.

When Chansey holds an Eviolite, its effective bulk surpasses Blissey's maximum defensive stats. This makes Eviolite Chansey an incredibly resilient Special Wall capable of absorbing hits that would otherwise 2HKO Blissey. However, this reliance on a specific item introduces a critical flaw.

If Chansey loses its Eviolite to the move Knock Off, its defensive capabilities plummet instantly. Blissey, on the other hand, can hold Heavy-Duty Boots. This item grants Blissey immunity to entry hazards like Stealth Rock and Spikes, which is crucial in formats dominated by hazard-stacking teams.

Both Chansey and Blissey function strictly as Special Walls and Clerics. Their abysmal base offensive stats mean they rely entirely on fixed-damage moves to apply pressure. Seismic Toss guarantees damage equal to the user's level, making it mandatory on almost every set.

Soft-Boiled provides instant 50% HP recovery, allowing Chansey to stall out special attackers indefinitely. Toxic or Thunder Wave cripples switch-ins, while Stealth Rock provides utility for the rest of the team. When available, Teleport gives the Chansey line a way to act as a slow pivot, safely bringing in fragile teammates.

This defensive profile fits perfectly on Stall and Balance teams that need a reliable sponge for Special Attacks. Conversely, Hyper Offense teams should avoid using Chansey. Its passive nature drains offensive momentum and provides setup sweepers with free turns to boost their stats.

Competitive Rating: 8.5/10. The Chansey line remains the gold standard for special bulk in competitive Pokémon, but it demands careful team building to cover its inherent passivity and physical frailties.

Pros:

• Unmatched Special Defense and HP combination.
• Reliable, instant recovery with Soft-Boiled.
• Excellent utility movepool including Stealth Rock, Toxic, Thunder Wave, and Heal Bell.

Cons:

• Extreme vulnerability to Knock Off, which ruins Eviolite Chansey.
• Highly passive, turning into setup bait for physical sweepers like Swords Dance Garchomp.
• Base Defense is practically non-existent without Eviolite and maximum EV investment.
• Physical Fighting-type moves like Close Combat easily secure OHKOs.