Teamfight RNG - No tactics involved.
I can't see who I'm about to face so I can't react and reposition or bench/unbench champs to counter my opponent. I can't make synergistic comps as there's a good chance I'll never get a single champ I need. I can't adapt much to enemy comps as changing champs mid-game will most likely screw myself, never seeing that champ again in the store. I can't create powerful item builds because I'll usually get 4 negatron cloaks, or just no items at all.
All I can do is buy up every champ that shows the most often in the store, and hope that they keep showing up. Then pray that I actually get some items during monster battles, and if I do, that it's not just negatron cloaks and belts.
The only user choice is whether to throw early and get a late gold advantage or start spending early.
In terms of gameplay I don't see any form of tactics here what so ever. The name is misleading.