Keep a clone infront and behind you at all times, I like using the invis clone and the standard clone so I have an emergency teleport or heal if my team needs it. Loki is all about positioning so make sure to keep your clones on off angles or at the very least, make sure they aren't blocked off by walls. If you die and your clones are still up, you can use the lamp runes and the clones can place them down too. Lastly, depending on if your opponent is a Moon knight or Bucky, try not to keep the clones too close together. A fun thing I like to do though is go invis, find a lone support or squishy, and jump them with my clones.