No. A monster like Elemental HERO Wildheart cannot have its attack negated by Negate Attack, and because the attack was not negated, the battle phase will not end either.
Assuming the defending monster is also in attack position, both monsters will be destroyed.
Your monster is destroyed if the monster you attack is in attack position, and you lose life points.
Answer taken from the Official English Rulebook: After you've announced your attacking monster and the attack target monster during a Battle Step, the attack target might be removed from the field, or a new monster may be played onto the opponent's side of the field before the Damage Step, due to a card's effect. This causes a "Replay." When this occurs, you can choose to attack with the same monster again, or choose to attack with a different monster, or choose not to attack at all. Note that if you attack with a different monster, the first monster is still considered to have declared an attack, and it cannot attack again this turn.
Forbidden Chalice will negate Marshamallon's 'cannot be destroyed by battle' effect. Because Forbidden Chalice changes the ATK of a monster, it can be used in the Damage Step, after Marshmallon is flipped by an attack. If you did this, you will not take the 1000 damage from Marshmallon either - his damage dealing effect activates after Damage Calculation, but will be negated.
Yes, generally you canBUT there are some cards that doesn't allow the effect to activate if you attack. Example is Chaos Sorcerer.so make sure to read the card text first.
You do.
Assuming the defending monster is also in attack position, both monsters will be destroyed.
Your monster is destroyed if the monster you attack is in attack position, and you lose life points.
yes but the damage from the first attack doesnt add on to the second attack
other yugioh cards monster the higher attack points the better
Only if it has an effect that lets it attack more than once per turn, like Asura Priest does.
Yes, this is what you normally do since you can't place them in face down attack position.
No you choose a new target and plz read the rule book.
Answer taken from the Official English Rulebook: After you've announced your attacking monster and the attack target monster during a Battle Step, the attack target might be removed from the field, or a new monster may be played onto the opponent's side of the field before the Damage Step, due to a card's effect. This causes a "Replay." When this occurs, you can choose to attack with the same monster again, or choose to attack with a different monster, or choose not to attack at all. Note that if you attack with a different monster, the first monster is still considered to have declared an attack, and it cannot attack again this turn.
You cannot manually. Such an occurence could only result from a card effect.
Forbidden Chalice will negate Marshamallon's 'cannot be destroyed by battle' effect. Because Forbidden Chalice changes the ATK of a monster, it can be used in the Damage Step, after Marshmallon is flipped by an attack. If you did this, you will not take the 1000 damage from Marshmallon either - his damage dealing effect activates after Damage Calculation, but will be negated.
no it is not...