Slavery questions

[defector]

I've been playing slavery long enough that I shouldn't have to ask these questions, please help me clarify a few things.
When I slaver someone I can A:Tap all their creatures in a "Null Attack", or B: I can also tap a creature in a real attackand block/kill it with Pentavus. I can't do both at the same time.  I can not kill them with mana burn, but I can kill them with ancient tomb or a pain land tapped for a color.  That's all I can remember about arguing about right now, but I will put additioal slavery questions on this thread as they come up.
Thank you for your time,
defector

[Jacob Orlove]

For each creature they control, you can either have that creature attack normally (ie tapping, dealing damage, etc), or have that creature not attack at all (and remain untapped). You can't arbitrarily tap their creatures.

Ancient Tomb or a pain land will still do damage as normal, and they can die from that damage--they just can't take mana burn from unspent mana.

[defector]

Thank you for the rapid reply.  That helps a lot.
defector

[Mixing Mike]

On a side note, I was wondering if you can discard two artifact cards in your hand from 1 resolved TFK by choosing the second option?

[Matt]

Yes. You have a choice to make - option A is to discard an artifact, option B is to discard two cards. If you choose option B, then it doesn't matter if one of the cards is an artifact.

[Ged]

If you choose option B, then it doesn't matter if one of the cards is an artifact.

Can both of the cards be artifacts?

[Jacob Orlove]

If you choose option B, then it doesn't matter if one of the cards is an artifact.

Can both of the cards be artifacts?

Yes. You either discard one artifact or any two cards.

[Ged]

Thanks.