Interstellar Migration

Yithian.
Action: Choose a Yithian character and return it to its owner's hand.
Action: Put Interstellar Migration on the bottom of your deck to choose a deck. Discard X cards from that deck. X is equal to the number of Yithian cards in your discard pile. This effect can only be triggered from your discard pile.

Power Drain

Disrupt: Cancel an Action or Response just played or used.

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I had this questions come up today and not sure how it worked.

If I use Power Drain on the 2nd effect of Interstellar migration, does it still go to the bottom of the deck or can my opponent just use the action again straight away?

It goes to the bottom of the deck, since the cost of a canceled event must still be paid.

As jhaelen says... If cancelled, Interstellar Migration does still go to the bottom of the deck, because it is part of the cost to play the card and the disrupt step occurs after costs have been paid.

As per the FAQ, the steps of an action window are:

1) Action is initiated - including paying the cost ("Put Interstellar Migration on the bottom of your deck to...") and then triggering the effect ("Action:")

2) Disrupts - Power Drain is paid for, played and executed, cancelling Interstellar Migration

3) Action is executed - Interstellar Migration's effect ("...choose a deck. Discard X cards from that deck. X is equal to the number of Yithian cards in your discard pile.") would have occurred here, had it not been cancelled

4) Passive abilities are initiated

5) Forced Responses

6) Responses

7) Action is resolved (end of action)

Also as per the FAQ --

(2.13) Paying Costs

Costs are any resources paid in order to play a card, as well as anything before the “to” part of a card ability. For example, Slavering Gug (Core Set F124) reads “Action: Pay 4 to choose and wound a character.” Draining a domain with at least 4 resources is the cost for that ability.

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If an effect is canceled, any costs that were paid to trigger that effect are still lost. For example, if Player A drains a domain to play Shotgun Blast, but Player B plays Power Drain (which cancels the Shotgun Blast). Player A’s domain remains drained, even though the Shotgun Blast effects were canceled.

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