yamijoey asked: So if my opponent has two Morph Creatures and I know one or both, but have forgotten which is on the left and which on the right, can I just say "Bolt your face-down Phoenix", or do I have to remember?
Bolt the Phoenix is fine.
kpestana asked: In 2HG Prerelease, will players be able to combine their card pools to build their decks, or only build from their own prerelease pack.
It depends how your specific TO is running the event. Both are valid options, so just do whatever the judge tells you to do.
Anonymous asked: If I use Howl of the Horde to copy an Arc Lightning, can I change how the damage is distributed? i.e., if the first Arc Lightning is targeting three creatures for 1 damage each, could I make the copy/copies do 3 damage to one target, or 2 and 1?
The number of targets will be the same for the copies.
lonnbeimnech asked: If I control Mayael's Aria and a 10/10 creature enchanted with Sunbond, will the creature be a 20/20 early enough for me to win the game off of Aria?
Sunbond’s ability is a trigger, and the trigger won’t even go on the stack until all of Mayael’s Aria’s trigger finishes resolving.
coglineerro asked: Since you are not able to shuffle your morphs or attempt to disguise which one is which, are you required to identify an Ashcloud Phoenix that has been returned from the graveyard facedown if your opponent requests it?
Your opponent shouldn’t have to request it, though. It should be clear from the moment it returns which one it is.
Anonymous asked: If I have Ajani steadfast's emblem and have guardian seraph on the field does that mean no damage can be dealt to me?
As long as the damage can be prevented and you apply the prevention effects in the correct order, sources your opponents control will be unable to deal damage to you in this scenario.
dantetheripper asked: I have Hand of The Praetors and Inkmoth Nexus on the field. If I turned the Inkmoth into a 1/1 flying infect creature, does that trigger Hand of the Praetors ability, allowing me to give a poison counter to a player?
Inkmoth Nexus is already on the battlefield. Becoming a creature isn’t the same thing as a creature entering the battlefield or casting a creature spell.
bigorns asked: "Can I play multiple (Lightning Bolts) on a single creature (hornet nest), or would the creature be destroyed after the first and the others would resolve?" Can you play another Lightning Bolt in response to your own Lightning Bolt?
Sure, but after one resolves, the Nest will die and the other Bolt will be countered on resolution for not having a legal target.
Anonymous asked: Generator Servant produces two colorless mana. This mana is used to cast a bestow creature as an Aura. In response the creature targeted with bestow is killed. So, we know that the bestow turns into a creature, according to 702.102d. The real question is, does Generator Servant give haste?
The mana was spent on an aura spell, not a creature spell.
glitch29eh asked: If I resolve Twincast on my opponent's non-Epic Eternal Domination, will my copy be Epic?
No, because the spell you’re copying doesn’t have Epic.
doombladez asked: So I absolutely hate the 2HG format, the rules are wonky and no one believes the rules for it when I try to explain the weirder ones. Is there anywhere on the web that has a comprehensive list of rules FAQ's and tips for the format please? I'd be even more in your debt.
As in many things, I turn here to the Judge Wiki:
Anonymous asked: With far/away, a creature you control is targeted with far can you choose to sacrifice that same creature targeted as a candidate for away?
Fused spells always resolve the lefthand spell’s effect before the righthand spell’s effect.
Anonymous asked: In regards to morph, some cards can trigger abilities based on "when this card is turned face up." Do those apply if you were to cast the card face up from your hand or only when u pay the morph cost while it's face down? Thanks!
They only apply if you turn it face up, not if it just enters the battlefield face up.
archangel77 asked: Does Lens of Clarity see morph cards as they are being played as a 2/2 colorless creature?
Lens of Clarity only lets you look at face-down creatures once they’re on the battlefield. You can’t peek at them on the stack.
Anonymous asked: Not rules related: I plan on going to the pre-release this weekend and have never been to one (or FNM, for that matter). Could you give me an idea of what to expect and should I bring anything beyond a life counter and some money?
Every set, Wizards publishes an excellent Prerelease Primer, going over this sort of thing.
Here’s the one for Khans of Tarkir: