Some spells are similar to what Nicho suggested, so I noted those.
Basic spell (left click):
- Spear jab (from Nicho - except I would make it slightly longer range than Morth since a spear has further reach)
Passive buff: - Maim
Duar knows exactly where to strike his foes. Each attack slows enemies by 20% and reduces any healing by 50%.
Secondary spell (straight line)
-Shield bash (line AoE; from Nicho)
Duar plows forward with his shield, damaging and stunning all enemies in his path for 0.5s.
-Flurry (channeling, cone AoE in front of Duar, in direction of drawn line)
Duar rapidly strikes with his spear in front him, dealing physical damage over 2.5s.
Animation: Basic attack animation but executed at hyper speed, maybe with the speed striking in a different orientation each time and some dust appears around over the AoE.
-Leap (in direction of drawn line)
Duar leaps a great distance forward in a selection direction.
Note: This is taken from Morth, but I think Morth's Tumble should be changed to a low cooldown, short distance evade time spell while Duar's could be a longer-distance, long cooldown spell.
Defenseive spell (up caret)
-Warcry (active AoE buff around Duar)
Duar inspires his allies in a small area around him, granting him and his allies +30% movement speed for 4s.
-Taunt (active AoE debuff around Duar, active buff on Duar)
After a 1s cast time, Duar taunts his enemies in a small area around him, gaining +30% armor forcing all enemies to attack him for 2.5s.
Note: Enemies are effectively stunned and can not cast any spells besides basic attacks. If Duar leaves the attack range of an enemy while Taunt is still in effect, the enemy will walk towards him until they can cast a basic attack. If Duar can not be found or targeted, then enemies will just stand in place for the duration unable to do anything.
Offensive spell (down caret)
Duar throws his shield at his enemies which jumps between enemies up to 3 times dealing damage and stunning for 1.5s each time before returning to Duar.
Mechanic: This spell would function just like Akia's Healing Wave.
Animation: Either the shield could actually leave or it sends out a dummy shield, but either way it would not impact his ability to use other shield-based spells.
-Impact crater (from Nicho)
Duar jumps into the air from his current location. After 2s, Duar slams back down on at the same location dealing massive damage in a small area.
-Bloodlust (active buff)
Duar gains +10% armor penetration and +10% attack speed for each 5% of HP missing for 7s.
Animation = red aura around Duar and he his model grows 5% larger for each 5% of HP missing (character model is twice as big if Duar is at 1HP).
Note: I'm assuming if you have more armor penetration than your enemy has armor, then you effectively deal bonus damage. If this is not the case, then this spell should just give +10% damage to his basic attack.
Ultimate (right click)
-Final stand (active buff)
Duar becomes unkillable (can not drop below 1 HP) for 5s.