Jinafire Long

Jinafire Long enters the battlefield with a Flame counter for each {r} spent to cast it.
Remove X Flame counters: Exile the top X cards
from your library face down. You may play those
cards as long as they remain Exiled.
At the beginning of your end step, if you control Jinafire Long and Lagoona Blue, Exile them and
return them melded.