Handful #4 answer

The seven tiles

D₂S₁I₁M₃A₁T₁U₂

The best three words: 56 points

1. STADIUM 26 points
2. ADMITS 15 points
3. AMIDST 15 points

The seven-letter word using every tile was STADIUM, which earns the 15-point length bonus on top of its tile values.

Other high scorers

AUTISM 15AUDITS 14DATUM 12TUMID 12ADMIT 11

There were 75 valid words of three letters or more in these tiles. A word scores the sum of its tile values plus a length bonus (4 letters +1, 5 letters +3, 6 letters +6, 7 letters +15), so one long word usually beats several short ones.