Trent Tokens
Medallion of Keenness - 2021 (Gold)
When the wearer attacks with a 1-handed weapon (melee or missile) and wields a shield, the wearer's attacks crit on a natural 19-20. If the weapon's attack already crits on 19-20, this token does not affect their crit range.
Q1) In order to expand the crit range, must one equip a shield in the same mode (melee or missile) that the attack is made in?
A1) Yes. If only one of those modes has a 1-handed weapon & shield combo, the crit range for the other mode is not expanded by this medallion.
Q2) If I use a bow and a buckler, can I get the expanded crit range?
A2) No. Even though a buckler is a shield, bows are 2-handed weapons. Only a 1-handed weapon and shield combo qualifies.
Q3) Would a shield and a thrown weapon qualify for the expanded crit range?
A3) Yes. As long as a shield is equipped, any 1-handed weapon (including alchemical) qualifies.
Q4) Can I equip something like a Brawler's Mug or Orb of Might and get the expanded crit range?
A4) No. Neither of those items are shields.
Text On Token: When using a shield & a 1-handed weapon you critical on “19-20”
Official True Dungeon Token Database Listing