True Strike is a cantrip, so in other words it shouldn't supposed to be useful throughout the game..When you are a Lvl 1-2 char with low AB instead of missing twice in a row you use true strike so u can actually hit once at least.. Ofcouse you can find other situations later on tho like everything else in D&D..all your characters arent get into combat before detected so when some of your chars are in combat andif your wizard is hiding behind a corner or smth.. you can cast true strike, choose the actual spell you want to hit the enemy with and let him get into combat while walking to cast it..
If you have disadvantage because of smth..enermy being higher ground, you being blind, poisoned, you have bane spell on you etc. you can make use of it
