Oran-Rief, the Vastwood
Land
This land enters tapped.
: Add 
.
: Put a +1/+1 counter on each green creature that entered this turn.
Mike Bierek
Commander 2021 (C21)
• #307Rulings
Oran-Rief's last ability cares about permanents' characteristics at the time the ability resolves, not their characteristics at the time they entered. For example, if a blue creature enters, then is turned green by a spell or ability, then Oran-Rief's second ability resolves, you'll put a +1/+1 counter on that creature.
(wotc • 2009-10-01)
Oran-Rief's last ability affects all permanents that are green creatures that entered this turn, not just the ones you control.
(wotc • 2009-10-01)
Rulings
Oran-Rief's last ability cares about permanents' characteristics at the time the ability resolves, not their characteristics at the time they entered. For example, if a blue creature enters, then is turned green by a spell or ability, then Oran-Rief's second ability resolves, you'll put a +1/+1 counter on that creature.
(wotc • 2009-10-01)
Oran-Rief's last ability affects all permanents that are green creatures that entered this turn, not just the ones you control.
(wotc • 2009-10-01)