Collect The Alphabet officially describes letter packs from Common all the way to MYTHIC. Current public gameplay fills that range with six observed tiers—Common, Uncommon, Rare, Epic, Legendary, and Mythic—and maps each tier to a sequential part of A–Z. Use the tiers to find a missing letter, not to invent a probability or assume the highest name always gives the best board value.
Compare the six currently documented tiers
The official description confirms the endpoints and collection loop. The full middle ladder and displayed numbers above come from multiple current public playthroughs. Check the live pack before spending because the creator can update them.
Use rarity as a location label
If A–D is complete, Common no longer helps A–Z even though it remains cheap and quick. If Q, R, and T are missing, Legendary currently has three possible useful outcomes. If only Z is missing, Mythic is the relevant observed pool despite its longer timer.
This method uses known pool membership and your missing list. It does not require hidden odds. Recalculate after each new letter so an already completed tier does not continue consuming Money.
Keep unknown probability fields empty
No creator-published numeric drop table was found. The fact that a pack contains four or five observed letters does not prove equal probability. A handful of public openings also cannot establish hidden weighting.
If you track your own pulls, label the result as a personal sample with pack tier, upgrade state, event state, server date, and sample size. Use it to understand your session, not to announce official percentages.
Do not rank letters by tier alone
Pack tier tells you the observed source group. It does not publish a letter’s Money-per-second value, Diamond sell value, Word usefulness, or Symbol relationship. Read those values from the current board and sale screen.
A Mythic letter may be harder or slower to obtain in the observed route, but that does not prove it is always the best mounted choice. The Alphabet Board Guide explains how to compare one board change at a time.
Recheck values after progression changes
Pack Speed may change opening time, while events or passes may change what a server shows. A public session observed one Pack Speed purchase affecting newly placed packs, not already placed ones. That single result does not define every level or future build.
When your timer differs, use the live value and record the current upgrade state. The Pack Timers Guide provides a controlled before-and-after route.
Recover from a mismatch
If a letter appears in a different pack, confirm the exact experience and current server. Check Place ID 127103413498148, then compare the pack’s visible pool. If an update changed it, follow the live display and note the date rather than forcing the old row.
If a value differs only after an upgrade, keep the base observation and upgraded observation separate. Do not overwrite one with the other or treat the changed timer as a new rarity tier.
Questions about pack rarity
Common and MYTHIC are official endpoints. Six tiers, the A–Z pools, prices, and timers are community-corroborated current gameplay observations. Numeric odds, equal weighting, letter income, Diamond sell values, and complete Pack Speed curves are not officially published.
Checked sources
- Official Roblox experience — Common-to-MYTHIC range, checked August 27, 2026.
- Community packs and rarities reference — timestamped public-gameplay values, checked August 27, 2026.