Perhaps hide the chance to hit for the first 2-3 or so hits, this represents trying to figure out the enemy AC.
Another option might be displaying the range based on the actual rolls you do. I'll try and put up an example of how that might work:
For instance, take an enemy with an AC of 15.
You don't know what the chance to hit is, so the tooltip says "To Hit: ???"
The player attacks and rolls a total of 18, so the tooltip is updated: "To Hit: Under 18" (or "To Hit: < 18"). That ends the player's turn.
Player 2 attacks and rolls a total of 13, so the tooltip is updated again: "To Hit: Over 13 and Under 18"
If the attack roll hits or missed by exactly one, then the exact AC is revealed.
Player 3 attacks and rolls a total of either 14 or 15, and the tooltip is updated "To Hit: 15"
I would rather do that myself... It's part of DND... I prefer not being spoon-fed everysingle detail of the game, as it is detracts from the experience.
But that's just my opinion☺️
