Forcing this horrible choice on your rivals is a fantastic way to whittle their hand down to next to nothing, removing yet more of their options - perfectly devious
If the target creature is an illegal target as Harvestrite Host's ability tries to resolve, it won't resolve and none of its effects will happen
For example, if you side in Pithing Needle against The Aristocrats to deal with Sorin, Lord of Innistrad, you can still cast it to turn off their Falkenrath Aristocrat or Cartel Aristocrat in a pinch
With the high starting life total and the inclusion of Commander damage, life gain strategies are not generally considered very powerful in the format
Hazel's Brewmaster reminds me of Deathbonnet Sprout / Deathbonnet Hulks back side, though its an attack trigger that makes Food tokens instead of an upkeep trigger
Hazezon Tamar ($165) Legends was a unique time in MTG