Zygarde has 5 alternate forms, 0 change type and 4 change stats

Zygarde and its 5 alternate forms, of the 1,025 species this site covers

Alternate forms5

Change type0

Change stats4

Largest total shift+178

Default form

Zygarde

5 m, 305 kg

Abilities: Aura Break

Base stat total 600.

Form 3

114 fewer base stat points, spread differently

1.2 m, 33.5 kg, from Sun and Moon, 67 moves in its learnset

Abilities: Power Construct

Stat	Default	This form	Change
HP	108	54	-54
Attack	100	100	0
Defense	121	71	-50
Sp. Atk	81	61	-20
Sp. Def	95	85	-10
Speed	95	115	+20
Total	600	486	-114

Form 4

same types and stats as the default

5.0 m, 305.0 kg, from Sun and Moon, 67 moves in its learnset

Abilities: Power Construct

Stats match the default form.

Form 5 Battle only

108 more base stat points, spread differently

4.5 m, 610.0 kg, from Sun and Moon, 67 moves in its learnset

Abilities: Power Construct

Stat	Default	This form	Change
HP	108	216	+108
Attack	100	100	0
Defense	121	121	0
Sp. Atk	81	91	+10
Sp. Def	95	95	0
Speed	95	85	-10
Total	600	708	+108

Form 2

114 fewer base stat points, spread differently

1.2 m, 33.5 kg, from Sun and Moon, 67 moves in its learnset

Abilities: Aura Break

Stat	Default	This form	Change
HP	108	54	-54
Attack	100	100	0
Defense	121	71	-50
Sp. Atk	81	61	-20
Sp. Def	95	85	-10
Speed	95	115	+20
Total	600	486	-114

Form 6 Mega Battle only

178 more base stat points, spread differently

7.7 m, 610.0 kg, from Mega Dimension

Abilities: None listed

Stat	Default	This form	Change
HP	108	216	+108
Attack	100	70	-30
Defense	121	91	-30
Sp. Atk	81	216	+135
Sp. Def	95	85	-10
Speed	95	100	+5
Total	600	778	+178