Sage of Hours + Big Mother Mouser + Resourceful Defense

Sage of Hours

Big Mother Mouser

Resourceful Defense

How it works

1. Declare Big Mother Mouser as an attacker, triggering its ability, doubling the +1/+1 counters on it.
2. Activate Resourceful Defense by paying 4, moving five +1/+1 counters from Big Mother Mouser to Sage of Hours.
3. Activate Sage of Hours by removing all +1/+1 counters from it, causing you to take at least one extra turn after this one.
4. Repeat each turn.