Spelltwine

Spelltwine has two targets: the instant or sorcery card in your graveyard and the one in an opponent’s graveyard. You can’t cast Spelltwine unless you can choose both legal targets.

Wotc — July 01, 2012

If one of Spelltwine’s targets is illegal when Spelltwine tries to resolve, you’ll still exile and copy the remaining legal target.

Wotc — July 01, 2012

The copies are created in exile and cast from exile. The cards remain exiled.

Wotc — July 01, 2012

You can cast the copies in either order.

Wotc — July 01, 2012

The copy you cast first will already be on the stack when you cast the other copy. If that spell targets a spell, you may choose the first copy as a legal target.

Wotc — July 01, 2012

If you cast a card “without paying its mana cost,” you can’t pay any alternative costs. You can pay additional costs such as kicker costs. If the card has mandatory additional costs, you must pay those.

Wotc — July 01, 2012

If the card has X in its mana cost, you must choose 0 as its value.

Wotc — July 01, 2012