Rules Tip of the Day: Type-changing effects include those that add a supertype, type, or subtype to those that already exist, as well as effects that completely replace existing supertypes, types, and subtypes.

Q: My opponent plays Temporal Extortion and then I play Twincast and target it. What happens?

A: When your opponent played Temporal Extortion, its triggered ability went on the stack on top of the Temporal Extortion. If you played the Twincast as soon as you had priority, then it went on the stack on top of this triggered ability. In this situation, your Twincast would resolve and put a copy of Temporal Extortion on the stack. When this copy is put on the stack, its ability will not trigger, as this copy was not played. That means that no player can pay life to counter the copy of Temporal Extortion. Next, your Temporal Extortion copy will resolve. When it does, you will get an extra turn. Then the triggered ability from your opponent's Temporal Extortion will resolve. At this point, any player can pay half their life to counter this original Temporal Extortion controlled by your opponent. If no one does, it will eventually resolve, and your opponent will get an extra turn. When multiple extra turns are generated, the most recently created one will go first. This means that your opponent will take an extra turn after this one and then—assuming that this is a two player game—you will take two turns.

Q: Can I use Kor Dirge to redirect Sunlance's damage from a nonwhite to a white creature?

A: Yes, that works. Sunlance's targeting restriction only applies to the Sunlance itself. When you redirect the damage from a spell or ability, you are altering the effect, you are not choosing new targets. When Sunlance resolves, it still targets a white creature, so its targeting restriction is still being met. The fact that this damage is being dealt elsewhere does not matter. So you can use an effect that redirects damage and have the damage from Sunlance be dealt to a white creature.

Q: With the new Flash ability, can I, during the announce blockers step, announce three blockers, then play a Dust Elemental to block another creature?

A: No. All blocking creatures are declared at one time. No one gets priority to play spells and abilities when this happens. You cannot declare some blockers, plays spells and abilities, and then declare additional blockers.

Q: Can Teferi, Mage of Zhalfir stop me from using Sunforger's effect on my opponent's turn?

A: Yes. In fact, since you play the searched for card when Sunforger's ability resolves, a Teferi controlled by an opponent will prevent you from effectively using Sunforger's ability anytime. Technically speaking, you can play the ability and search for a card, but Teferi's ability will prevent you from playing this card, so it will remain in your library.

Q: If I Ovinize my Groundbreaker in my second main phase, he will become a 0/1 creature with no abilities until end of turn, so the "At end of turn, sacrifice Groundbreaker" ability will not trigger, right?

A: You are correct. At the beginning of the end of turn step, the Groundbreaker will not have any abilities, so there will be nothing to trigger. Keep in mind that this ability will trigger at the beginning of the next end of turn step .

Q: If Blood Moon is in play and I play Vesuva, can I still turn the Vesuva into a different basic land (ie. my opponent's Forest) before the Blood Moon triggers and turns it into a Mountain?

A: Yes, that works. First of all, Blood Moon's ability is a static ability that is applied at all times. It does not have a triggered ability. Anyway, when you play Vesuva, you choose a land in play to copy as it comes into play. Vesuva will then come into play as an exact copy of that land. The only difference is that the Vesuva will come into play tapped, regardless of how the original land comes into play. If you choose to have it copy a basic land, then it will come into play as an exact copy of the chosen basic land. Because of this, the ability from Blood Moon's ability will not be applied to it.

Q: If I Sneak Attack several creatures including a Gleancrawler, can I have the other creatures return to my hand at end of turn?

A: Yes, in fact you can return the Gleancrwaler to your hand a well. At the end of turn, just put the Gleancraler's ability on the stack first, followed by all of the Sneak Attack delayed triggered abilities. Then, when Gleancrawler's ability resolves, all of the creatures that you just sacrificed, including the Gleancrawler, will be returned to your hand.

Q: In a Two-Headed Giant match, how does Temporal Extortion work? If we have 28 life, and our opponents play the spell, do I pay 14 life, or 7 life to counter it? I would have thought it was 7 life, because each player's life total is equal to half of their team total, but everyone I play with disagrees. Can you help?

A: You are correct. When Temporal Extortion's triggered ability resolves, each individual player in the game is given the opportunity to pay half of their life total. This is not something that a team does. And as you pointed out, in 2HG, an individual player's life total is treated as half of the team's total, rounded up. The example you gave is correct; in order to counter a Temporal Extortion when your team life total is 28, you'd have to pay 7 life.

Q: Do both members of a Two-Headed Giant Champs team have to reside in the state in question? Or can just one be a resident?

A: In order to play in 2HG Champs, both player on a team must be residents of that state.