High mana value MTG cards usually have powerful effects, but they also have a pretty intuitive tradeoff you cant use them until you have enough mana
1/2 Human Rogue with haste and "When this token enters, it deals 1 damage to any target." Enchantment Color tag templates(None) Rabble Rousing Hideaway 5 (When this enchantment enters, look at the top five cards of your library, exile one face down, then put the rest on the bottom in a random order.) Whenever you attack with one or more creatures, create that many 1/1 green and white Citizen creature tokens
If you dodge 200 times in a row, you receive an item used to upgrade a Celestial Weapon, but the difficulty is extremely high, and it is known as a brutal minigame
There are plenty of powerful decks that lean into the attack trigger mechanic, from Isshin, Two Heavens as One to The Ur-Dragon