12 new boss encounters have been added to the tower, which are available in Climber, Endurance & Rumble Modes, then in Freestyle one time they are defeated in of those.
 
Note that the quests they are related to now count towards the Dominion Tower's entry requirements:
 
Apep & Heru (Diamond in the Rough)
Vanstrom (The Branches of Darkmeyer)
Char (The Firemakers Curse)
Dawn (Death of Chivalry)
Khazard & allies (Ritual of the Mahjarrat)
Zemouregal & Enakhra (The World Wakes)
Yelps (The Mighty Fall)
Lol (The Mighty Fall)
Chaos Grimmson & Hreidmar (Birthright of the Dwarves)
Echo of Jas of a Kind)
Dragon Hunters of a Kind)
Nial Swiftfling (Glorious Memories)
Rewards
Dreadnips can now have their combat styles switched - right-click them to make the change. They are better at finding their targets, .
 
Dominion Markers now grant you increased combat stats & - from tier two up - a prayer bonus when planted.
 
There is as well as a used upgrade tier for the Dominion Medallion, meaning better stats, more teleports to the tower, as well as a style-universal accuracy buff. Rack up 1800 kills in Rumble Mode to unlock it. note that the double kill counts for unlocks bonus that is active this weekend won't work for unlocking this new item tier.
 
Snowverload - Christmas Boss

 
Free players & members
 
A bulbous shape is forming in the winter gloom; horrible cackles drifting on the frigid breeze. Snowverload - the player-named seasonal boss - is here, & he is prepared to put you on ice!
 
This frosty monstrosity will manifest simultaneously as every second Wilderness Warband, & can appear north of Falador, in the Varrock Grand Exchange, south of the Clan Camp, or near Draynor Village.
 
Snowverload is impervious to regular assaults. The only way to weaken him is to take snow from his body (right click on him to do this), & equip the snowballs you receive & pelt him with them.
 
Dodge his deadly assaults & keep up your snowy onslaught & he'll gradually reduce in size. One time he is been sufficiently weakened, he'll start to move from his original spot.
 
One time this happens, it is up to you to lure him to the Lumbridge Crater, where the most festive of heroes will step in to conquer Snowverload until he returns.
 
Everyone who contributes to RS Gold down Snowverload will receive festive paper, & will be able to deliver a second present that day.

read more: http://www.viprsgolds.com/