activating abilities

[Avodroc13]

What you're not seeing is that all the mana he floats is in his mana pool so you get it. For example.

You {Drain Power}

He has 2 {Forest} and 3 {Mountain}.

In response he taps all his land, putting {G}{G}{R}{R}{R} in his /mana pool/.

He could then spend that mana on say, a {Lightning Bolt}. Then he has {G}{G}{R}{R} in his mana pool.

{Drain Power} resolves, taps his lands (which are all tapped) then you get his {G}{G}{R}{R} that he floated because you're taking mana from his mana pool and that's where mana goes when you float it.

That's what I wasn't understanding. Thanks for clarifying. So even if he taps everything and only uses 3 of the ...8? I still get what's left over. sweet.

[LinkCelestrial]

What you're not seeing is that all the mana he floats is in his mana pool so you get it. For example.

You {Drain Power}

He has 2 {Forest} and 3 {Mountain}.

In response he taps all his land, putting {G}{G}{R}{R}{R} in his /mana pool/.

He could then spend that mana on say, a {Lightning Bolt}. Then he has {G}{G}{R}{R} in his mana pool.

{Drain Power} resolves, taps his lands (which are all tapped) then you get his {G}{G}{R}{R} that he floated because you're taking mana from his mana pool and that's where mana goes when you float it.

That's what I wasn't understanding. Thanks for clarifying. So even if he taps everything and only uses 3 of the ...8? I still get what's left over. sweet.

Yep. The only thing worth noting is if he has a land that taps for different colors he decides what color you get from it.

[Avodroc13]

What you're not seeing is that all the mana he floats is in his mana pool so you get it. For example.

You {Drain Power}

He has 2 {Forest} and 3 {Mountain}.

In response he taps all his land, putting {G}{G}{R}{R}{R} in his /mana pool/.

He could then spend that mana on say, a {Lightning Bolt}. Then he has {G}{G}{R}{R} in his mana pool.

{Drain Power} resolves, taps his lands (which are all tapped) then you get his {G}{G}{R}{R} that he floated because you're taking mana from his mana pool and that's where mana goes when you float it.

That's what I wasn't understanding. Thanks for clarifying. So even if he taps everything and only uses 3 of the ...8? I still get what's left over. sweet.

Yep. The only thing worth noting is if he has a land that taps for different colors he decides what color you get from it.

So if he has, say, {Market Festival} on one of his lands and I'm running mono blue he can choose to give me red instead?

[LinkCelestrial]

What you're not seeing is that all the mana he floats is in his mana pool so you get it. For example.

You {Drain Power}

He has 2 {Forest} and 3 {Mountain}.

In response he taps all his land, putting {G}{G}{R}{R}{R} in his /mana pool/.

He could then spend that mana on say, a {Lightning Bolt}. Then he has {G}{G}{R}{R} in his mana pool.

{Drain Power} resolves, taps his lands (which are all tapped) then you get his {G}{G}{R}{R} that he floated because you're taking mana from his mana pool and that's where mana goes when you float it.

That's what I wasn't understanding. Thanks for clarifying. So even if he taps everything and only uses 3 of the ...8? I still get what's left over. sweet.

Yep. The only thing worth noting is if he has a land that taps for different colors he decides what color you get from it.

So if he has, say, {Market Festival} on one of his lands and I'm running mono blue he can choose to give me red instead?

He'd tap the land for whatever it normally produces and then he could add 2 red if he wanted. You'd still get it but yes, that's how it works. Note that you can't add a color that doesn't exist or colorless.

[Avodroc13]

What you're not seeing is that all the mana he floats is in his mana pool so you get it. For example.

You {Drain Power}

He has 2 {Forest} and 3 {Mountain}.

In response he taps all his land, putting {G}{G}{R}{R}{R} in his /mana pool/.

He could then spend that mana on say, a {Lightning Bolt}. Then he has {G}{G}{R}{R} in his mana pool.

{Drain Power} resolves, taps his lands (which are all tapped) then you get his {G}{G}{R}{R} that he floated because you're taking mana from his mana pool and that's where mana goes when you float it.

That's what I wasn't understanding. Thanks for clarifying. So even if he taps everything and only uses 3 of the ...8? I still get what's left over. sweet.

Yep. The only thing worth noting is if he has a land that taps for different colors he decides what color you get from it.

So if he has, say, {Market Festival} on one of his lands and I'm running mono blue he can choose to give me red instead?

He'd tap the land for whatever it normally produces and then he could add 2 red if he wanted. You'd still get it but yes, that's how it works. Note that you can't add a color that doesn't exist or colorless.

One other question, what about land like {Mirrodin's Core}? Can I tap that for what ever color and remove a counter or does he choose that color as well?

[AwaySinceMirage]

Effectively the opponent gets to make all the choices, one way or another.
if I were your opponent, I would respond to your putting Drain Power on the stack by putting Mirrodin's Core's 2nd ability on the stack. I would get a charge counter and you actually would get nothing in that case.

[Kaylesh]

Effectively the opponent gets to make all the choices, one way or another.
if I were your opponent, I would respond to your putting Drain Power on the stack by putting Mirrodin's Core's 2nd ability on the stack. I would get a charge counter and you actually would get nothing in that case.

Yup, that would be the best play. Note that if you let {drain power} resolve, you HAVE to tap for mana, though it is still the controller who does so.

[LinkCelestrial]

What you're not seeing is that all the mana he floats is in his mana pool so you get it. For example.

You {Drain Power}

He has 2 {Forest} and 3 {Mountain}.

In response he taps all his land, putting {G}{G}{R}{R}{R} in his /mana pool/.

He could then spend that mana on say, a {Lightning Bolt}. Then he has {G}{G}{R}{R} in his mana pool.

{Drain Power} resolves, taps his lands (which are all tapped) then you get his {G}{G}{R}{R} that he floated because you're taking mana from his mana pool and that's where mana goes when you float it.

That's what I wasn't understanding. Thanks for clarifying. So even if he taps everything and only uses 3 of the ...8? I still get what's left over. sweet.

Yep. The only thing worth noting is if he has a land that taps for different colors he decides what color you get from it.

So if he has, say, {Market Festival} on one of his lands and I'm running mono blue he can choose to give me red instead?

He'd tap the land for whatever it normally produces and then he could add 2 red if he wanted. You'd still get it but yes, that's how it works. Note that you can't add a color that doesn't exist or colorless.

One other question, what about land like {Mirrodin's Core}? Can I tap that for what ever color and remove a counter or does he choose that color as well?

As stated above, your opponent taps for mana and you get it.