ボーラスの城塞/Bolas's Citadel

LegendaryArtifact -
You may look at the top card of your library any time. <CR>
You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its converted mana cost rather than pay its mana cost. <CR>
{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

LegendaryArtifact -
You may look at the top card of your library any time. <CR>
You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. <CR>
{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

LegendaryArtifact -
You may look at the top card of your library any time. <CR>
You may play the top card of your library. If you cast a spell this way, pay life equal to its converted mana cost rather than pay its mana cost. <CR>
{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.

LegendaryArtifact -
You may look at the top card of your library any time. <CR>
You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its converted mana cost rather than pay its mana cost. <CR>
{T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.