If you mean for its own effect, then no. It is an Ignition Effect so can only be activated in your own main phases.
Depends what for. You could tribute it for a spell speed 2 or 3 effect such as Enemy Controller, but not for an Ignition Effect.
Yes. If the tribute is for a Tribute Summon, then you can't attack with any monster again afterwards, since this Summon will occur in Main Phase 2. If the tribute is for a card effect and resolves during the Battle Phase, then you can attack again with another monster, since it would still be the Battle Phase.
yes
Yes, nothing stops you doing that. But of course since you're limited to one normal summon per turn, you can't normal summon a monster and then tribute it for a tribute summon. But you're free to tribute it for the cost of an effect or a special summon.
yes it would, because when the opponent attacked, it was his turn and the effect carries on until the end of the next turn which would then be your turn. For e.g, if your opponent activated the effect then the effect would end at the end of your end phase. If you activated the effect, then it would end at the end of your opponents end phase.
Depends what for. You could tribute it for a spell speed 2 or 3 effect such as Enemy Controller, but not for an Ignition Effect.
Yes, you can activate Torrential Tribute whenever a monster is summoned. Here's a hint you can also activate on your turn to destroy your opponents monsters.
A Gemini monster is a special kind of Effect monster that is treated as a Normal Monster with no effects when initially summoned to the field. At any time after this that you can perform another Normal Summon, you can choose to 'summon it again' (in the OCG, this is called a 'second summon') and it then becomes aneffect monster with the listed effects.So, Player A, in his main phase, Normal Summons Blazewing Butterfly. It is a Normal Monster, with no effects. In his next turn, he can use his turn's Normal Summon to 'Gemini Summon' the Blazewing Butterfly, which will turn it into an effect monster with the effects on the card. Anything that grants additional Normal Summons can speed this process up.The card doesn't leave the field at any point, you are performing the summon on a card that is already on the field, and it does not require tribute in the case of a high level Gemini monster. But since it's considered a Normal Summon, it can be negated, and summon-responsive cards like Torrential Tribute can be used against it. Because it never leaves the field, any cards equipped to it, will remain equipped, any bonuses, conditions and counters will be retained also.
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butterflies don't turn into anything. they just die
Yes, you can use activated abilities on your opponents' turn as long as the ability does not specify that it can only be activated during your turn.
They die and do not turn into a butterfly.
Yes. If the tribute is for a Tribute Summon, then you can't attack with any monster again afterwards, since this Summon will occur in Main Phase 2. If the tribute is for a card effect and resolves during the Battle Phase, then you can attack again with another monster, since it would still be the Battle Phase.
You can definitely tribute a monster on the same turn as a Normal Summon, ie, you can normal summon Exiled Force and tribute it for its effect. What you can't do is tribute it for a Tribute Summon because this is another Normal Summon, you can't perform two in a turn unless an effect allows you to do so. But you can tribute that monster for other things, like an activation cost or for a special summon.
Magic
Yes, you can tribute monsters for card effects and Tribute Summon the same turn you summon a monster. However, you cannot Normal Summon a monster and Tribute Summon on the same turn because you can only Normal Summon once per turn. Cards such as Double Summon and Ultimate Offering will let you do that.
You can attack with a monster and then tribute it in the same turn, yes. Obviously if you tribute it first, then it can't attack unless you've got a way to bring it back to the field.