What stacks and what do not stacks?

Started a new Inquisitor/Soldier character and need to get a few things clear before I progress further.

  1. Attack speed - does the attack speed from Ranged Expertise and Squad Tactics stacks?

  2. Movement speed - does the movement speed from Word of Renewal and Oleron’s Rage stacks?

  3. Reduce resistance - does the resistance reduction from Death Sentence stacks with Viper constellation, Elemental Storm, Manticore’s Acid Spray and Blessed Steel component?

  4. Defensive ability reduction - does defensive ability reduction from Markovian Advantage, Biting Cold and Storm Box stacks?

  5. Slow - does the slow from Biting Cold and Internal Trauma stacks?

Also, if I take the modifier for Cadence to convert 100% physical damage to elemental, will stacking physical damage improve the Cadence hit or do I have to stack elemental damage?

1 - Yes if you are using a ranged weapon.

2- Yes.

3 - Death Sentence stacks with Viper and one of the others and also stacks that do same as Death Sentence. Viper doesn’t stack with debuffs just like it (20% reduced elemental resist doesn’t stack with another 20% reduced elemental resist) but stacks with Death Sentence and flat resist. All the others are flat resist reduction and flat resist reduction doesn’t stack with itself. Flat Resist stacks with debuffs like Viper and Death Sentence.

4 - If it says 70 Reduced Target DA, it doesn’t stack with other debuffs that do same. If it says - 70 Defensive then it stacks with other debuffs that do same and will stack with 70 Reduce Target DA.

5 - Don’t know actually.

The Discord only converts the flat physical in Cadence (that flat physical that shows up in the Cadence tooltip) to elemental.

See the red text. Also, all of these are answered by other posts on the forums. I won’t go all angry mode on you here, but it is good forum etiquette to look for things that are relatively easy to find before posting.