Quick answer
Source-labelled letter preparation for difficult transitions, with Q/X/Z treated as practice prompts rather than official rankings.
Start here when this is the exact player task you searched for. The sections below turn the question into steps, checks, and next pages.
For finish the word tips, use editorial hard/safe letter guidance with inference labels. Role-first letter choices, practice steps, common mistakes, and confidence notes are the safe way to prepare difficult transitions.