Engineer Tiered Passives (v.6)

Mod three of four in my series to enhance passive play! I love passives in games like this so I took it upon myself to add a little more oomph to each class's passives, and to also make it feel more cohesive with the other skills. Also, there are lots of passives that I feel no one ever takes so this should make some of those more attractive without (hopefully)making them overpowered. Enjoy! Heavy Lifting Tier 1: Increases damage with giant weaponry by 3% Tier 2: Increases damage with giant weaponry by 4% Tier 3: Increases damage with giant weaponry by 5% Supercharge Tier 1: +4% chance to get a supercharged strike, +1% weapon damage, +1% charge gain Tier 2: +4% chance to get a supercharged strike, +2% weapon damage, + 2% charge gain Tier 3: +4% chance to get a supercharged strike, +2% weapon damage, +2% charge gain Coup de Grace Tier 1: Adds an extra burst of fire damage equal to 50% of the electrical damage Tier 2: Increases fire damage to 75% of electrical damage Tier 3: Increases fire damage to 100% of electrical damage Bulwark Tier 1: Reflects 3% of damage taken back as electrical damage Tier 2: Reflects 6% of damage Tier 3: Reflects 10% of damage Fire and Spark Tier 1: Adds an aura that has a 3% chance to burn and shock nearby foes for 3 seconds Tier 2: Chance increased to 6%, duration increased to 4 seconds Tier 3: Chance increased to 10%, duration increased to 5 seconds Charge Domination Tier 1: Adds a 5% movement speed buff for 3 seconds Tier 2: Adds a 10% movement speed buff for 4 seconds Tier 3: Adds a 15% movement speed buff for 5 seconds Sword and Board Tier 1: Adds 7. 5% of each of your shield's elemental resistances to bonus damage on attacks Tier 2: Amount increased to 15% Tier 3: Amount increased to 22. 5% Aegis of Fate Tier 1: Increases chance to get Aegis by +1%, decreases all damage taken by 3% for 3 seconds Tier 2: Increases chance to get Aegis by +2%, decreases all damage taken by 4% for 6seconds Tier 3: Increases chance to get Aegis by +2%, decre