水晶の這行器

Text:

収斂 ― 水晶の這行器は、これを唱えるために支払われたマナの色１色につき＋１/＋１カウンターが１個置かれた状態で戦場に出る。
水晶の這行器の上から＋１/＋１カウンターを１個取り除く：あなたのマナ・プールに好きな色１色のマナ１点を加える。
：水晶の這行器の上に＋１/＋１カウンターを１個置く。

Rulings:

• 11/8/2016 The colors of mana are white, blue, black, red, and green. Colorless is not a color.
• 11/8/2016 Unless a spell or ability allows you to, you can’t choose to pay more mana for a spell with a converge ability just to spend more colors of mana. Likewise, if a spell or ability reduces the amount of mana it costs you to cast a spell with converge, you can’t ignore that cost reduction in order to spend more colors of mana.
• 11/8/2016 If there are any alternative or additional costs to cast a spell with a converge ability, the mana spent to pay those costs will count. For example, if an effect makes Crystalline Crawler cost <img src="/Handlers/Image.ashx?size=small&amp;name=1&amp;type=symbol" alt="1" align="absbottom" /> more to cast, you could pay <img src="/Handlers/Image.ashx?size=small&amp;name=W&amp;type=symbol" alt="White" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=U&amp;type=symbol" alt="Blue" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=B&amp;type=symbol" alt="Black" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=R&amp;type=symbol" alt="Red" align="absbottom" /><img src="/Handlers/Image.ashx?size=small&amp;name=G&amp;type=symbol" alt="Green" align="absbottom" /> to cast it and have it enter the battlefield with five +1/+1 counters.
• 11/8/2016 If you cast a spell with converge without spending any mana to cast it (perhaps because an effect allowed you to cast it without paying its mana cost), then the number of colors spent to cast it will be zero.