When you tap a target creature in Magic: The Gathering, it becomes exhausted and cannot attack or use its abilities until it untaps during the next untap step.
Yes, you can tap or untap a target creature during your turn in Magic: The Gathering.
When a creature with the ability "can't be the target of spells or abilities" in Magic: The Gathering is targeted by a spell or ability, the spell or ability will not affect that creature. This means the spell or ability will have no effect on the creature with that ability.
When a Magic: The Gathering creature dies, it is put into the graveyard from the battlefield.
If a creature in Magic: The Gathering dies and cannot be regenerated, it is put into the graveyard and is no longer on the battlefield.
When a creature in Magic: The Gathering can't be regenerated, it is destroyed and cannot be saved or brought back to the battlefield.
In the game of Magic: The Gathering, a target creature can fight another creature on the battlefield by being chosen to deal damage to that creature.
When a creature with trample attacks a creature with protection in Magic: The Gathering, the attacking creature can assign excess damage to the defending player or planeswalker, bypassing the protected creature.
When a creature with 0 toughness is on the battlefield in Magic: The Gathering, it is put into its owner's graveyard as a state-based action.
No, a creature is not considered a spell in Magic: The Gathering.
No, a planeswalker is not considered a creature in Magic: The Gathering.
When a creature with deathtouch attacks a creature with indestructible in Magic: The Gathering, the creature with deathtouch will still deal damage to the indestructible creature. However, since the indestructible creature cannot be destroyed by damage, it will not be destroyed.
In Magic: The Gathering, the keyword "hexproof" means that a creature or player cannot be the target of spells or abilities controlled by opponents.