Summoning Trap
If a creature spell you cast this turn was countered by a spell or ability an opponent controlled, you may pay {0} rather than pay this spell's mana cost. Look at the top seven cards of your library. You may put a creature card from among them onto the battlefield. Put the rest on the bottom of your library in any order.
Rulings (4)
Oct 1, 2009 · Casting a Trap by paying its alternative cost doesn't change its mana cost or mana value. The only difference is the cost you actually pay.
Oct 1, 2009 · Effects that increase or reduce the cost to cast a Trap will apply to whichever cost you chose to pay.
Oct 1, 2009 · You may ignore a Trap's alternative cost condition and simply cast it for its normal mana cost. This is true even if its alternative cost condition has been met.
Oct 1, 2009 · If there are seven or fewer cards in your library, you'll look at all of them.
Where it’s played now
Inclusion by archetype · Modern
| Archetype | Format | Inclusion | Copies | Decks (n) |
|---|---|---|---|---|
| Neobrand | Modern | 3.6% | 4× | 28 |
| Domain Zoo | Modern | 2.7% | 2–3× | 74 |