The Thing as an attacker. Its second ability triggers, causing you to pay ({R} magic symbol) ({G} magic symbol) ({W} magic symbol) ({U} magic symbol) to double the number of +1/+1 counters on a creature you control.
Activate
Resourceful Defense by paying ({4} magic symbol) ({W} magic symbol) , moving five +1/+1 counters from a creature to
Sage of Hours.
Activate
Sage of Hours by removing all +1/+1 counters from it, causing you to take an extra turn after this one.
Repeat each turn.
Notes
If you cast a noncreature spell before combat, you can put four +1/+1 counters on
The Thing. This means if it had a +1/+1 counter to start, it can serve as the creature with five or more +1/+1 counters on it.