Type Effectiveness

How much damage a move type deals against a defending Pokemon's type. Against a single type a hit is super effective (2x), neutral (1x), not very effective (0.5x), or has no effect (0x). Dual types multiply the two matchups together, so the full set of multipliers is:

Multiplier	Result
0x	No effect
0.25x	Doubly resisted
0.5x	Not very effective
1x	Neutral
2x	Super effective
4x	Doubly super effective

This is the standard Pokemon type chart. See Type.