Highest charge damage out of all melee weapons at the moment, and can be increased with Rending Strike, Killing Blow, and Corrupt Charge for a total of 1,640 charge damage. Faction damage mods can increase this to 2,132 (not shown while in arsenal) charge damage. These still do not include any additional elemental damage applied and resistances to each, and critical damage.
2nd and 3rd normal attack strike in the combo slams the ground and inflicts AoE damage. The 5th also hits the ground behind you, to the right. This can be used to stunlock certain enemies such as Infested Chargers or simply add elemental procs such as ice or fire, similar to the Fragor.
Fury increases the swing portion speed of the charge attack (charge attacks consists 2 two 'parts', the charge and the swing). As such, should be considered in charge damage builds. Fury also speeds up the ground finisher move on downed enemies.
Charging this weapon will make your body glow with your energy color 2 times before the blade is released (other melee weapon will make your body glow once). If released before the second glow, Galatine will only do a normal attack.
Charge attack actually can hit twice, once up towards the top right of the reticule, and the final swinging action, and if used correctly, will allow you to hit the same enemy twice in one charge.
Highly recommended to use a warframe that has the ability to stealth (e.g. Loki), due to the long charge time and the possibility to get interrupted easily and the extra damage output dealt to enemies. Also, a Shade with Ghost equipped, can be quite convenient as well.