| 12/1/2004 |
Spellbinder's second ability allows you to create a copy of the imprinted instant card in the Exile zone (that's where the imprinted instant card is) and then cast it without paying its mana cost. |
| 12/1/2004 |
You don't pay the spell's mana cost. If the spell has X in its mana cost, X is 0. You do pay any additional costs for that spell. You can't use any alternative costs. |
| 12/1/2004 |
If the copied card is a split card, you choose which one side of it to cast, but you can't cast both sides. You can choose the other side later in the game, though. |
| 12/1/2004 |
Spellbinder imprints a card only once, when it enters the battlefield. Attaching Spellbinder to a creature doesn't trigger its enters-the-battlefield ability. |
| 3/1/2005 |
The creation of the copy and then the casting of the copy are both optional. |
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