User blog comment:Ra Ra Runi/General question blog/@comment-35019468-20150116042827

Second round:
 * 1. Yes, you can grow Sunspot Tama into Mayu.
 * 2. Ancient Weapons, by far. Ancient Weapons have tons of good unrestricted SIGNI, like Arahabaki, Aztec, Kythera, Marsface, Megatron, and Palbek.
 * 3. Ancient Surprise is mandatory. Aside from that, there's Bloody Slash, Dead Splash, Idol Defense, Oversalvage, Salvage, Spirit Salvage... nothing too out of the ordinary. As for the level 4, Tamayorihime, Sky Miko is used for its low grow cost, which lessens the need for non-black cards.
 * 4. Yes, it is legal. Deal with it.

You should run about 20 black SIGNI.