Gen, Confider of Ages
Legendary Creature — Human Wizard, {W}{U}{B}{R}{G}
Oracle Text
Gen gets +1/+1 for each different year of release among other nontoken permanents you control. (For example, if a card was released in 1993, that's one year of release. Specific editions matter.)
Whenever Gen attacks, if its power is 30 or greater, you win the game.