The 7-10 rule in Dungeons & Dragons (and tabletop RPGs broadly) is an informal guideline about session scheduling: if you have a gaming group of 7 or more people, statistically expect only 5–6 to show up. If you have 10, plan for 7–8. It’s a reminder that larger groups are harder to schedule and that some attrition at every session is normal.
The rule exists because D&D requires recurring in-person commitment — unlike a video game you can pause or an asynchronous game like MTG where you play when convenient. Real life (work, family, illness) consistently prevents 20–30% of any large group from making a given session.
The Practical Application
Dungeon Masters and group organizers use the 7-10 rule to:
Set group size expectations. If you want a consistent 4-player game (often considered ideal for D&D), you need to recruit 5–6 committed players to absorb expected absences.
Avoid over-recruiting. Some DMs over-correct by inviting 8–10 players, which creates the opposite problem: sessions with 7+ people at the table, which can be unwieldy and slow.
Plan narrative around attendance. Experienced DMs write their sessions knowing 1–2 players may be absent. They avoid placing key story moments in sessions where they need the full party.
Alternatives and Variations
Different gaming communities phrase the rule differently:
- “Schedule for N+2” — Invite two more players than your target table size
- “Flaky fifth” — Some groups keep a “flaky fifth” spot specifically for a player they like but can’t rely on
- “Session zero attendance check” — Vetting commitment upfront before the campaign starts
D&D vs. MTG: Scheduling Commitment
This is one of the key differences between D&D and Magic: The Gathering as hobbies:
D&D requires group coordination — everyone needs to be available at the same time, in the same place, for 3–5 hours. The 7-10 rule exists precisely because that commitment is hard to sustain.
Magic is far more flexible. You can play:
– At your own pace (drafting with however many people show up, from 2 to 8)
– Asynchronously (online via MTG Arena or Magic Online with no scheduling required)
– Casually (a Commander pod assembles in 5 minutes with whoever’s at the game store)
– Competitively (tournaments run with full attendance because there’s a buy-in incentive)
Many players who love strategy games start with D&D or other RPGs and eventually add Magic as a less schedule-dependent alternative. The games appeal to similar people — lovers of rules, narrative, world-building, and competitive thinking — but with very different logistical demands.
Is Magic Easier to Schedule Than D&D?
Generally yes. Magic’s biggest advantages for scheduling:
- Variable player counts — Commander plays 3–6, draft plays 4–8, 1v1 plays anywhere
- No DM required — There’s no single person whose absence cancels the game
- Drop-in friendly — Game stores run events on fixed schedules; you show up or you don’t
- Digital option — MTG Arena lets you play anytime without coordination
If the scheduling burden of D&D is a pain point for your group, Commander (Magic’s multiplayer format) scratches many of the same itches — political alliances, long games, character-style deck building — with much lower scheduling friction.
For an introduction to Commander or other MTG formats, see our format guide or Commander precon decks to get started quickly.