mtg cards types Anatomy of a Magic Card Changing Creature Types in MTG:

It makes casting the spell easier by reducing its mana cost

Though our very Commander is a damage amplifier, her effect is gleefully multiplied with each additional amplifier on the table, so we include cards like City on Fire, Furnace of Rath, Fiery Emancipation, Fire Servant, and Dictate of the Twin Gods for extra Scoville units

Acorn Catapult Animal Friend Camellia, the Seedmiser Chatter of the Squirrel Chatterstorm Chittering Doom Chitterspitter Form of the Squirrel Mistakes Were Made Nut Collector Rootcast Apprenticeship Scurry Oak Specimen Collector Squirrel Dealer Squirrel Farm Squirrel Nest Squirrel Sanctuary Squirrel Squatters Squirrel Stack Squirrel Stack Squirrel Stack Squirrel Stack Squirrel Stack Squirrel Stack The Unbeatable Squirrel Girl Wrenn and One (playtest)

Put each of those cards into your hand instead if there are three or more Lesson cards in your graveyard

While it doesnt technically double the damage from the likes of Lightning Bolt, it can still double the effect when it targets a single creature, dealing the same amount of damage to each opponent

Blue was so much better than the other colors at playing spells on the opponent's turn that Aaron suggested I do this color-by-color instead of making this installment a straight Top 50