Active How does this team look? Strengths? Weaknesses?

[Tiki God]

Dragonite-multi scale
Roost
Rockslide/dragon rush
Ice punch/earthquake
Substitute

Garchomp-sand veil
Dragon rush
Stone edge
Aqua tail
Rock slide

Tyranitar-sand stream
Earthquake
Dragon claw
Substitute
Thunder punch

Greninja-protean
Hydro pump
Ice beam
U turn
Extrasensory/dark pulse

Gengar
Destiny bond
Mean look
Shadow ball
Perish song

Zoroark
U turn
Night daze
Dark pulse
Toxic

 

[Blizzard Icewalker]

Would change the zoroark, put in a Hazard pokemon instead.
Hazard pokemon are good because if a pokemon with sturdy or focus sash can be one shotted, also for extra dmg on a pokemon that has to set up stats. (charizard, dragonite,azumarill, etc)