With Aminatou, the permanent you targeted is exiled and then returned to the battlefield under your control, not returned to your hand.
Also, although the Witchclaw Talisman will be given to your opponent (as that is part of the ability’s resolution), Aminatou will still exile and return it. This is because it targets a permanent you *own*, not necessarily that you control.
If the permanent with an “at the beginning of your upkeep” trigger isn’t on the battlefield as the upkeep step begins, then it won’t trigger that turn. This is because the beginning of the upkeep only happens, well, at the beginning, so anything that enters the battlefield after the upkeep has started cannot retroactively get a “beginning of upkeep” ability to trigger.
As for your second question, haste isn’t something that creatures generally have unless it’s an ability of the card itself, or another source is giving it haste. I think you mean to ask about summoning sickness, which lasts until you’ve controlled a creature continuously since the *start* of your most recent turn. Since a creature that enters the battlefield during your upkeep step wasn’t under your control as the turn started, it will indeed be affected by summoning sickness until your next turn.
Monstrous is a status that a creature can have, but it isn’t a copiable value. So, even if Volrath becomes a copy of a monstrous creature, the Volrath-copy will not be monstrous. This also means that once it does become monstrous, Volrath remains monstrous even if it copies a creature that is not monstrous, and will remain so until it leaves the battlefield.
Yes, all of the cards in the Brawl decks will be Standard legal, even though some of them (Arcane Signet, for example) don’t do anything in formats that don’t use a Commander.
Yes. Fleecemane Lion has a normal activated ability, which means that a player can respond to it while it’s on the stack and before it resolves. So, your opponent can cast Fatal Push in response to the Lion’s ability being activated, which results in the Lion being destroyed before it becomes monstrous or gains a +1/+1 counter (and therefore before it becomes indestructible).
Shapeshifters aren’t Walls. However, creatures with the changeling keyword are all creature types and would be destroyed.
The point I’m trying to make is that creatures with the type Shapeshifter do not always have changeling. But, when they do, they are all creature types at all times. Compare Morphling (Shapeshifter, does not have changeling) with Mirror Entity (Shapeshifter, also has changeling). Morphling would not be destroyed by Siege Dragon’s ability, whereas Mirror Entity would.
Mirri’s ability means that only one creature can be declared as an attacker. As such, the tokens created by Leonin Warleader will enter tapped and attacking. Since they were not declared as attackers, this bypasses Mirri’s restriction.
Volrath only copies the “copiable values” (see 706.2 in the Comprehensive Rules) of a creature that it copies. This doesn’t include abilities given to the creature by a one-shot effect.
So, if Volrath becomes a copy of a creature that had Tainted Strike used on it earlier in the turn, it will not have infect.
After Living Death resolves, any triggered abilities that triggered since the last time state-based actions were checked will be put on the stack in APNAP (Active Player, Non Active Player) order. So, as you’re the active player in this scenario, your triggered abilities that triggered from either death or entering the battlefield will go on the stack, followed by the next player in turn order, and so on.
You can activate Sundial during your end step while the delayed triggered ability from Ilharg is on the stack. If you do, that ability will be removed from the stack as part of ending the turn, and it won’t trigger again, effectively letting you keep the creature you cheated in indefinitely.
Kresh’s ability only applies while it is on the battlefield. Abilities only function from the command zone if they explicitly say so.
If Kresh leaves the battlefield, it loses any counters that were on it. See Skullbriar, the Walking Grave for an example of a card that gets to keep its counters when it changes zones.
The attack restriction is tied to Pramikon’s static ability, and as such only applies for as long as Pramikon remains on the battlefield.
As for your second question, I’m actually not sure. I’m tempted to say that nothing can attack because you’re unable to meet both requirements, but I could be wrong on that. Hopefully someone else can chime in with a more definitive answer for this.
You cast Hogaak, which means it goes on the stack as a spell. As such, when it resolves, it enters the battlefield from the stack, just like any other creature spell you cast.
If something like Angelic Shield or Glorious Anthem is on the field, its static effect will give your lands enough toughness to survive as soon as they become creatures.
Also, although the Witchclaw Talisman will be given to your opponent (as that is part of the ability’s resolution), Aminatou will still exile and return it. This is because it targets a permanent you *own*, not necessarily that you control.
As for your second question, haste isn’t something that creatures generally have unless it’s an ability of the card itself, or another source is giving it haste. I think you mean to ask about summoning sickness, which lasts until you’ve controlled a creature continuously since the *start* of your most recent turn. Since a creature that enters the battlefield during your upkeep step wasn’t under your control as the turn started, it will indeed be affected by summoning sickness until your next turn.
The point I’m trying to make is that creatures with the type Shapeshifter do not always have changeling. But, when they do, they are all creature types at all times. Compare Morphling (Shapeshifter, does not have changeling) with Mirror Entity (Shapeshifter, also has changeling). Morphling would not be destroyed by Siege Dragon’s ability, whereas Mirror Entity would.
So, if Volrath becomes a copy of a creature that had Tainted Strike used on it earlier in the turn, it will not have infect.
If Kresh leaves the battlefield, it loses any counters that were on it. See Skullbriar, the Walking Grave for an example of a card that gets to keep its counters when it changes zones.
As for your second question, I’m actually not sure. I’m tempted to say that nothing can attack because you’re unable to meet both requirements, but I could be wrong on that. Hopefully someone else can chime in with a more definitive answer for this.