The Guru program was a short-lived yet fun thing run by Wizards of the Coast in which players could become Gurus and teach new players how to play the game in order to earn points
It forces both players to equalize lands, creatures, and cards in hand, and if you build around it or time it right, it can feel completely one-sided
x1] [Once Per Turn] [Your Turn] If this Character battles your opponent's Character, set this card as active
Description Additional information Description MTG Earl of Squirrel Unstable Promos pust#108 Squirrellink (Damage dealt by this creature also causes you to create that many 1/1 green Squirrel creature tokens.) Creature tokens you control are Squirrels in addition to their other creature types
It also produces the exact same amount of mana it costs to activate Breya, Etherium Shapers abilities, meaning you can sacrifice three artifacts to play them if your lands are tapped out
I havent felt this level of metagame domination since Affinity in Standard right after Darksteel and Skullclamp was considered a fair card for Standard printing