Dragon Roost

battlefield

Any player may pay rune rainbowrune rainbow as an additional cost to play a Dragon. If they do, they play it to this battlefield.

Rulings

• What happens when I play Temporal Breach targeting my Elder Dragon in base and pay [A][A] for Dragon Roost while playing Elder Dragon? Will it be played to base or to Dragon Roost?
• What happens when I play Perched Grimwyrm while I haven’t conquered Dragon Roost this turn? Can I pay [A][A] and play it to Dragon Roost? What if I’ve conquered another battlefield this turn?