Giving a creature hexproof as a response
40265
What happens if a target for removal becomes ineligible after a card has been cast?
104824
How do i testfor a item a player is holding?
48856
Can I tap a creature with summoning sickness to pay "tap an untapped creature you control" costs?
34718
How to apply damage to entities without instant damage effect?
114578
Design properties of the Rijndael finite field?
21139
What happens when creature has two mutually exclusive restrictions on what can block them?
40804
Are features that allow −5 to attack to get +10 to damage mathematically sound?
139008
What should be used to represent creature tokens when the printed token card isn't available?
6588
Can I give a creature trample after blockers have been assigned?
21194
How do I handle casting a spell with a cost of X when the casting cost is reduced?
104324
How can I turn a creature with Su and Ex abilties into armour that grants those abilities?
46754
In plain English, how does casting spells and using creature abilities work with the stack and priority?
46197
How would one throw an unwilling creature?
48088
Can the "Sacrifice (this card):" activated ability be placed back on the stack?
121220
Does the Hex spell's damage apply to spell attacks?
130572
Can I activate abilities in response to spells?
65441
Prevent the next x damage and multiple unblocked creatures