挑発の咆哮 (JP Roar of Challenge)

ソーサリー    (CMC:3)

クリーチャー１体を対象とする。このターン、それをブロックできるすべてのクリーチャーは、それをブロックする。 獰猛 ― あなたがパワーが４以上のクリーチャーをコントロールしているなら、ターン終了時まで、その対象としたクリーチャーは破壊不能を得る。

145 KTK • JPViktor Titov — watermark: Temur

™ & © 1993—2014 Wizards of the Coast

Notes: TODO: Update Copyright

Legal in: Modern,Khans of Tarkir Block,Legacy,Vintage,Commander

Oracle Text (click to copy):

Roar of Challenge {2}{G} Sorcery All creatures able to block target creature this turn do so. Ferocious — That creature gains indestructible until end of turn if you control a creature with power 4 or greater.

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View this MTG card on Gatherer

9/20/2014
Roar of Challenge doesn’t give any creatures the ability to block the target creature. It just forces those creatures that are already able to block the creature to do so.
9/20/2014
If, during the declare blockers step, a creature is tapped or is affected by a spell or ability that says it can’t block, then it doesn’t block. If there’s a cost associated with having that creature block, its controller isn’t forced to pay that cost. If the player doesn’t, the creature doesn’t block in that case either.
9/20/2014
If there are multiple combat phases, creatures that blocked the creature targeted by Roar of Challenge in the first combat aren’t required to block it again in subsequent combats.
9/20/2014
Some ferocious abilities that appear on instants and sorceries use the word “instead.” These spells have an upgraded effect if you control a creature with power 4 or greater as they resolve. For these, you only get the upgraded effect, not both effects.
9/20/2014
Ferocious abilities of instants and sorceries that don’t use the word “instead” will provide an additional effect if you control a creature with power 4 or greater as they resolve.

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Card Roar of Challenge is not on TCGPlayer.