If only this were instant for the last ability, but taking the whole card into account I think its actually very good and can be played any time in the game early to late
Walltop Sentries's triggered ability checks if there is a Lesson card in your graveyard when it is put on the stack and again when it goes to resolve
First, we started our worldbuilding with Magic 's color pie
There were two exceptions
Sure, token strategies are a dime a dozen, but what I love about The Third Doctor is how big you can grow him, and with the trample ability, you can smash through defenses
Play the cards that bring you joy, not the ones which might be considered objectively best. Runner-Up: Tamiyo, the Moon Sage Black Crypt Rats, a Visions classic, found a reprint in Seventh Edition and Modern Horizons, but has been mostly missing across the years