Cast Sage of Hours by paying ({1} magic symbol) ({U} magic symbol) .
Sage of Hours entering the battlefield triggers Remnant of the Rising Star, causing you to pay ({5} magic symbol) to put five +1/+1 counters on Sage of Hours.
Activate Sage of Hours by removing all +1/+1 counters from it, taking at least one extra turn after this one.
Activate Temur Sabertooth by paying ({1} magic symbol) ({G} magic symbol) , returning Sage of Hours from the battlefield to your hand and giving Temur Sabertooth indestructible until end of turn.