Instants - are the creatures blocked or not?
166
If a blocking creature leaves the battlefield, is the attacker still blocked, or will it damage the opponent?
37176
Can non-creature permanents have +1/+1 counters?
152220
Is it really problematic for Universal Instantiation to precede Existential Instantiation?
137149
Does a natural 20 on an attack cause a critical hit (even if the attack would have missed)?
15858
Does a petrified creature count as an object?
122606
How do I know which attack a creature would use for an opportunity attack?
48856
Can I tap a creature with summoning sickness to pay "tap an untapped creature you control" costs?
75468
What happens to swallowed creatures when Banishment is cast on the creature that swallowed them?
32406
Does shoving a creature break its grapple on another?
125649
Can an enemy take a reaction if you target them with a spell while the Time Stop spell is active?
69784
Changing control of an attacking or blocking creature mid-combat
91819
Is a spell suppressed or removed when the target temporarily becomes invalid?
52847
Does a tapped or removed attacking creature still deal its damage?
33028
Can spells with movable areas of effect be moved out of sight or behind obstacles?
116132
Can an illusion block a monster's harmful gaze?
78738
Are things besides creatures affected by the Time Stop spell?
40306
Can you get to blocked-in areas?