Dual types and 4× damage

How two types multiply: 4× weaknesses, ¼× resistances and immunities that cancel everything. Build typings yourself.

Trainer lesson · 5 minutes · 5 steps and a 5-question quiz · pokee.si Plus

Two types, one Pokémon

Lots of Pokémon have two types. Dragonite is Dragon and Flying.

When a move hits a dual-type Pokémon, take the multiplier against each type and multiply them together.

Ice is super effective against Dragon (2×) and against Flying (2×). So an Ice move hits Dragonite for 2 × 2 = 4×. That is a double weakness.

The rest of this lesson

This is one of the advanced lessons in pokee.si Plus. It goes on to cover:

1. Build a typing
2. Weaknesses can cancel out
3. Quick check
4. An immunity beats everything

Quiz

The lesson ends with a five-question quiz built from the Pokédex data, and earns the Double Trouble badge.

Sources

• pokee.si type chart (types.json, from PokeAPI type efficacy)
• pokee.si guide: Types and STAB
• Bulbapedia: Type

Related

• Dual-type calculator
• Types quiz pack
• Next: STAB

Next lesson: Abilities basics