I have a creature with 3/2 but my opponent use an enchantment
a) which make it -3/0, can i attack now with 0/2 creature?
b) which make it -5/0 what happens when i attack with -2/2 creature?
In either case, you can still attack. However, a creature with 0 or less power deals no combat damage, so in many scenarios attacking won't do much.
Swamp Mosquito, Signal Pest, and Xantid Swarm are all 0-power creatures that have abilities that only do something when they attack. They'd be especially useless if they needed a power boost to even be able to do that.
Note that creatures with Defender *can't* attack (and many of those also have 0 power). Guardians of Meletis can't attack - not because it has 0 power, but because it has Defender.
Even Char-Rumbler can attack...
If I steal a hundred dollar from a loot of one thousand, people might notice;
If I steal a hundred dollar from a loot of one million, I might get away with it;
If I wish to steal even more and still go unnoticed, I need to make the loot bigger.
Now you know why taxes always go up.
Looting: «the plundering of public assets by corrupt or greedy authorities» (Wikipedia)
What happens when a creature with -1 power attacks ? Does that damage harm to you whereas opponent ?
If a creature has a power of 0 or less, it doesn't deal any damage. So if a creature with a power of -3 attacks and goes unblocked, the defending player will not take any damage (your opponent does not gain life, and you do not lose life).
Wizards.Com Boards Net Rep
DCI Level 2 Judge
Questions don't have to make sense, but answers do.