$70M: 5 Clones
Your entire roster can only contain 5 unique players. There is no rule on how many times a single player can be cloned. A player does not have to be cloned.

Details
Seasons: 1920 - 2020
DH: No
WW: No
AAA: No
Trades: No
Clones: Yes
Injuries: Turned On
Multi-team players: No restrictions (i.e., you can use partial or combined)
Ballpark: No restrictions
300K Exception: No
Team Name: Mention at least one of your clones
Division Alignment: Random

70M Q&A

$80M: He's Really a HoFer?
All players (over 300K) on your roster must be in the Hall of Fame.

Details
Seasons: All
DH: No
WW: No
AAA: No
Trades: No
Clones: No
Injuries: Turned On
Multi-team players: No restrictions (i.e., you can use partial or combined)
Ballpark: Must have been the home park of one of your HoFers during the season of theirs that you use
300K Exception: Yes
Team Name: None
Division Alignment: Random

80M Q&A

$100M: Cutthroat Quick Drafts
There will six divisions, determined by Round 1 order of finish. So teams ranked 1-4 will be in the NL East, teams ranked 21-24 will be in the AL West.

There will be 6 separate drafts, one for each division. Each division will be drafting from a single season (see below for how seasons get selected). The first round's draft order will be from worst seed to best seed. So in the NL East draft, the team seeded #4 gets first pick, #1 picks last in round 1. Each successive round is based on cumulative team salary (lower salary drafts first).

The highest ranked team in each group (i.e., seeds 1, 5, 9, 13, 17, 21) get to pick the season their group is drafting from. AL West goes first (seed #21), then AL Central (seed #17), etc. No two groups will have the same season.

Details
Seasons: All
DH: No
WW: No
AAA: No
Trades: No
Clones: No
Injuries: Turned On
Multi-team players: No restrictions (i.e., you can use partial or combined)
Ballpark: Must have been active during your season
300K Exception: No
Team Name: Include your season
Division Alignment: See above

100M Q&A

$110M: See Ya Later, Friendo pt. 2
For each player you selected in Round 1 you must use a teammate of theirs (same team and season).

Details
Seasons: All
DH: No
WW: No
AAA: No
Trades: No
Clones: No
Injuries: Turned On
Multi-team players: No restrictions (i.e., you can use partial or combined)
Ballpark: Choose a stadium that one of your players played in during the season of theirs that you use
300K Exception: No
Team Name: No restrictions
Division Alignment: Random

110M Q&A

$120M: 3x3=9
Choose 3 seasons and 3 franchises. Combine them so you have 9 unique teams. All 25 players must come from one of those 9 teams.

No more than 3 players per team are allowed and every team has to be represented at least once. So the only combinations are:

3-3-3-3-3-3-3-2-2 = 25
3-3-3-3-3-3-3-3-1 = 25

Details
Seasons: All
DH: Yes
WW: No
AAA: No
Trades: No
Clones: No
Injuries: Turned On
Multi-team players: No restrictions (i.e., you can use partial or combined)
Ballpark: Must have been used by one of your 9 teams
300K Exception: No
Team Name: None
Division Alignment: Random

120M Q&A

Variable Cap: The Gambit, Inverted
Start at 160M. For every 0.050 in raw SLG% that your team's hitters had in real life, you lose 5M in salary.

SLG	Cap
< .450	160M
.450 - .499	155M
.500 - .549	150M
.550 - .599	145M
.600 - .649	140M
.650 - .699	135M
.700 - .749	130M
> .749	125M

Details
Seasons: All
DH: No
WW: No
AAA: No
Trades: No
Clones: No
Injuries: Turned On
Multi-team players: No restrictions (i.e., you can use partial or combined)
Ballpark: No restrictions
300K Exception: No
Team Name: Include your SLG%
Division Alignment: Random

Variable Cap Q&A

Big thanks to schwarze for collaborating on some of these.

My first thought is that the 70M theme will be extremely difficult.

100mil - how long between the time our fearless leader picks a season and the actual draft takes place?