
Whenever another creature you control enters, put a +1/+1 counter on that creature and a +1/+1 counter on this creature.
To protect the alliance between Kjeldor and Yavimaya, they trained in the ways of both.
Illustrated by Greg Hildebrandt · Duel Decks: Knights vs. Dragons · #21
2006-07-15
The creature doesn't enter with a +1/+1 counter on it. It enters, then the ability triggers. If either that creature or Juniper Order Ranger leaves the battlefield before the ability resolves, the remaining creature will still get a +1/+1 counter.