Add an item to game like Simple Bandages and Resurrection bandages.
Simple bandages heal yourself or other players. 1 slot per bandage and it scales off of healing skill. Healing scales off of AGI.
Every one point you have in Healing skill will heal 2 hit points of damage. You need 3 AGI for 1 point in healing. The only reason I'm saying AGI instead of INT is because it would stop us from adding a whole new attribute. It will lock down you and the person you are healing until the healing is completed or you get interrupted by getting attacked. The cast time (or heal time) on this is 5 seconds. Choose the times to heal VERY wisely because making a mistake could cost you both your lives.
Resurrection bandages as the name entails will resurrect a fallen teammate. These will take up two slots. It will be based off of healing skill and every point you have in healing will equal 3 points of HP the fallen teammate spawns with. Same rules from above apply. It takes 3 AGI to get 1 point in healing. The cast time on this *and again; once you start, you cannot stop* will be 20 seconds. CHOOSE WHEN TO RESURECT WISELY because there is a HIGH chance someone will find you and kill you within 20 seconds.
I think what makes this idea unique is the fact you cannot move or stop yourself once healing or resurrecting. It will also create a new unique way to play that isn't ground breaking.
Let's spice things up guys!!!!