The meek have taken over the plane, with the various critters banding together to rise up against the mighty Calamities that threaten civilization
These three cards are all powerful in their own right, and of course Tolarian Academy would be worth more than $500 if it wasnt banned/restricted in every format
In addition to the base cost of the spell, three different tiers are available to select with different additional mana costs
One option is a commander who discounts our other spells, like Animar, Soul of Elements or Morophon the Boundless, or one which can give us free casts like Rashmi, Eternities Crafter, Intet, the Dreamer or Jodah, the Unifier
All its abilities play into that strategy, giving you lifegain (on top of having lifelink themself), life drain, and card draw when your sagas are done