Fashioned with Grineer materials and balanced for marine infantry use, the Amphis is a traditional staff weapon that has received a monstrous makeover that enables shock damage on jump attacks. Connects with multiple enemies with each strike.
The Amphis causes a stun effect with high Impact damage, making it very effective against Corpus shields. This weapon can be sold for 5,000. It is the choice weapon of Grineer Guardsmen and Prosecutors.
This weapon is a requisite ingredient for the Sydon.
Until Update 13, the Amphis was not used by any Grineer unit. This would be a little over 1 year between the Amphis' introduction (February 22, 2013) and Guardsmen being added into the game (April 10, 2014).
On Jump attacks, the Amphis releases six small streams of electricity that each travel outwards lead by a sparking orb. This cosmetic effect is shared with the Prova.