Saw a video about a bait strategy for the red FW boss (the one who ignores def and hits based on Max HP) and was wondering if the strategy still works.

The idea is that since the hit is based on champion's Max HP, to have an unleveled, naked champ with super low HP and super slow speed go in and tempt the boss (supposedly the boss doesn't even bother putting stuns on your team). The trick is to have a high HP champ with Shield or Bolster set, and since the bait champ HP is super low and the shield is crazy high, the hits are supposedly not doing enough damage to break the shields. Then, you just kill the boss ASAP. 

Has anyone tried this strategy recently? Would like to know before I invest in the forge pass.