Pointed Discussion

Yes the effect is permanent.

This card in casual is pretty ridiculous. My friends' Emeria, the Sky Ruin always seem to check for forests when I play with them...

is this a permanent change?

EDIT: i'v been thinking, since this and sleight of mind ARE the same perhaps with the new bazaar trader you could give them your derelor sleight of mind it to whatever your opponents are playing then magical hack the mana symbol to color they ARNT playing and block it with some 0/5 and then there screwed...

I have magic hax.

Opponent: I play Boiling Seas, now you have no land.
You: And I play Magical Hack, now YOU have no land.
Opponent: LOL U HAXOR.

Are you prepared to stand up to the awesome might of my Mountain Fish Jasconious?

Good combo:
Play stormtide leviathan, then play this to turn the text from island to swamp. Then play nirkana revenant. Super mana ramp!!

Of course, you can play nirkana, then this, then leviathan. Either way, it's crazy.

tenkaze:

It says text, not card name. There is a difference between the two.

Hell, it doesn't even say type. Just text. So no. You can't do that. Sorry.

I'll hack your Urborg, Tomb of Yawgmoth!

This can change basic lands into other types, right?
I'm pretty sure it can, since the color of mana a basic land produces is dependent upon its name and type (see Dryad Arbor, Murmuring Bosk, the cycle from Shadowmoor, etc). So a permanent named Island with the type Basic Land - Island will be changed to Forest / Basic Land - Forest, and therefore tap for green mana.

@lateralisone: Okay, but type line is text, and a basic land's abilities are defined by their type. So you could get an Island / Basic Land - Forest that taps for green mana if I'm understanding this correctly.
But then again, if this can't change name, it might not change type line either ... however the Oracle wording says "text," not "text box", so I'm fairly certain that you would at least be able to change the type of a basic land with this spell.

edit: From the rulings: 10/4/2004 - It can be used to change a land's type from one basic land type to another. For example, a Forest can be changed to an Island so it produces blue mana.

The lesson to me is to check the rulings before asking, and the lesson to lateralisone is to read the rulings before shooting people down.

Blue mages are *** Kiddies.

/\/\4G1C4L H4XX, L0LZ!

yes Koth you may tap all that island of yours to make into a 4/4 creature

I don't understand the low rating. Put this on a scepter turn 2, the only cards that combat are counters and shatter. but after that, if you play your cards right, you should be able to stop them from being able to cast ;)

So could I use this card to change the upkeep on glacial plating to be regular red mana instead of snow? Or could I change braid of fires red mana to snow mana?

This card can be very useful - you just have to think about how you incorporate it into your deck or sideboard. For example, lifegain based on specific land types, land destruction, etc (hello, Flashfires+Magical Hack combo to screw over other players, for example)

The idea is awesome, especially in the days when hosers were OP: Tsunami? Moar like Acid Rain amirite? Flavor is kinda off, since most people associate "hack" with computers, though the first hackers were a model railroad club and now we have people hacking genes.

I still imagine Humility and Opalescence results in all our creatures singing Rick Astley. Sadly, they don't interact with this card at all.

Strictly better than Trait Doctoring.

Target creature with a basic landwalk ability is unblockable for the rest of the game. Oh dear!

@Squrrox-Assassin: no, Trait Doctoring has cipher and can change color and lands

HAAAAAAAAAAAAAAAAAAAAAAX!