Is 27 lands good in a Commander deck?
98984
How many lands do I need for a Commander deck?
98042
What happens to cards cast from exile?
103171
What happens when I can prepare more spells than I have slots to cast them with?
22446
Can my commander ever not be my commander?
11163
Do Card Effects Stack?
29503
How can I tell which cards or sets are currently legal in various formats?
141927
In the card game "Projective Set": Compute the probability that $n$ cards contain a set
80832
Construct a field of 25 elements.
118168
How do I know what cards or sets are legal to play with?
25457
FreeCell: How many cards can be moved at once?
114001
Why does everyone do 9-overlord, not 10-overlord?
40284
Winning Splendor with reserve cards
89345
Is drawing multiple cards an atomic action?
49752
Combinatorics: Number of possible 10-card hands from superdeck (10 times 52 cards)
133788
How quickly does a player have to say "Uno" to avoid drawing extra cards?
6361
Can I use two different cards with the same name in Commander?
30371
Finding places to play Magic the Gathering games