Callow Jushi // Jaraku the Interloper

Oracle Text

[Callow Jushi]
Whenever you cast a Spirit or Arcane spell, you may put a ki counter on this creature.
At the beginning of the end step, if there are two or more ki counters on this creature, you may flip it.

[Jaraku the Interloper]
Remove a ki counter from Jaraku: Counter target spell unless its controller pays {2}.