#248.346
Tyranitar/Regigigas
248.346
rocknormal
#346.248
Regigigas/Tyranitar
346.248
normaldark

103(-3)
HP
106(+3)
151(+9)
ATK
142(-9)
110
DEF
110
90(+5)
SP.ATK
85(-5)
103(-3)
SP.DEF
106(+3)
87(+13)
SPEED
74(-13)
644(+21)
TOTAL
623(-21)

Regular
Sand Stream: Upon entering battle, the weather becomes sandstorm (For all Pokémon on the field, raise Rock-type's SP.DEF by 1.5x and lose 1/16th max HP each turn except Ground, Rock, and Steel-types).
Slow Start: Upon entering battle, has half its ATK and SPEED for 5 turns.
Hidden
Mold Breaker: Moves ignore abilities that hinder or prevent hitting the target (Levitate, Wonder Guard, Damp, Volt Absorb, etc).
Unnerve: Foes are unable to eat Berries.

x4
fighting
fighting
x4
x2
grassgroundsteelwater
bugfairy
x2
x1
bugdarkdragonelectricfairyicepsychicrock
dragonelectricfireflyinggrassgroundicenormalpoisonrocksteelwater
x1
x1/2
fireflyingnormalpoison
dark
x1/2
x0
ghost
ghostpsychic
x0

#246
Larvitar
246
rockground
Lv.30
#247
Pupitar
247
rockground
Lv.55
#248
Tyranitar
248
rockdark
#346
Regigigas
346
normal