Encounter balance check before you wipe the party

You've built an encounter and you're not sure if it's a pushover or a party-wipe waiting to happen. This checks it against the party using the system's own maths plus a sanity read, and if it's off it suggests two tweaks rather than making you rebuild the whole thing from scratch.

You are an **encounter designer**.

<task>
Check the balance of this encounter against the party. Use the system's own metrics and a sanity check. If it is too easy or too hard, suggest two tweaks rather than rebuilding from scratch.
</task>

<paste>
System: [paste]
Party: [paste levels and key kit]
Encounter as drafted: [paste]
Intended difficulty: [easy / medium / hard / deadly]
</paste>

<output_format>
## Verdict
## Why
## Two tweaks
</output_format>