Frondland Felidar
Creature — Cat Beast
Vigilance
Creatures you control with vigilance have "
, 
: Tap target creature."
"Fear not the behemoth heard from miles away. Fear the stalking felidar, which reveals itself only for the kill." —Rielle, the Everwise
Steve Prescott
Rulings
Once you’ve activated the ability granted by Frondland Felidar, causing the creature to lose that ability (such as by removing Frondland Felidar from the battlefield) won’t affect the ability on the stack.
(wotc • 2020-04-17)
Frondland Felidar’s last ability applies to itself as long as it still has vigilance.
(wotc • 2020-04-17)
You can activate the ability granted by Frondland Felidar after attacking but before blockers are chosen.
(wotc • 2020-04-17)
Tapping an attacking creature doesn’t remove it from combat.
(wotc • 2020-04-17)
Rulings
Once you’ve activated the ability granted by Frondland Felidar, causing the creature to lose that ability (such as by removing Frondland Felidar from the battlefield) won’t affect the ability on the stack.
(wotc • 2020-04-17)
Frondland Felidar’s last ability applies to itself as long as it still has vigilance.
(wotc • 2020-04-17)
You can activate the ability granted by Frondland Felidar after attacking but before blockers are chosen.
(wotc • 2020-04-17)
Tapping an attacking creature doesn’t remove it from combat.
(wotc • 2020-04-17)