Amphis

"Fashioned with Grineer materials and balanced for marine infantry use, the AMPHIS heavy staff is a traditional weapon that has recieved a monstrous makeover that enables shock damage on jump attacks. Connects with multiple enemies with each strike."

- In-game description.

Characteristics
This is a Blunt weapon.

Advantages
 * Innate stun effect
 * Has an AoE electric jump-attack with relatively high damage
 * Can hit multiple enemies at once
 * Charged attack sends enemies flying like Bo does
 * Much faster charge speed compared to other heavy weapons
 * Has a polarity slot.

Disadvantages
 * Lower damage compared to other heavy weapons
 * Jump attack does not knock down, it is an AoE stun.

Acquisition
Amphis can be purchased for 150 and its blueprint for  15,000.