One Panda army.
Mid winner(Well, against those who rely on physical attacks to lasthit)
All in one build.
Slight problem is evasion only.
Magic nukers are also a minor problem.
Brewmaster is a both a great pusher, and a teamfighter.
Especially late into the game.
Very strong against any heroes that grant dispellable buffs, due to AOE dispel of the Wind Panda.
AOE Dispel also deals great damage to Summons, Illusions(Kills CK Tarrasque illusions with 2-3 uses) and breaks very annoying spells like Svens AOE Warcry, Omnikinght's Ultimate, dispells negative effects from friendly heroes, buffs from enemy heroes,etc. Very versatile ability with low cooldown.
With scepter, Ultimate offers you AOE Dispel(Which is praised above), Invis, 12 sec Eul, Crits, permanent built-in radiance, evasion, 2 nukes which are also a stun and a slow, great pushing ability(Demolish), and permanent spell immunity on Earth Panda. All Pandas with the 20 level right talent have more than 2000 hp. (Earth has even more than 4000hp)
Very strong hero overall.
Just fight with your ulti.