Well, thanks to the From the Future keyword, you cant cast him during your first, second, or third turns but that doesnt mean you cant cast him on someone elses turn
While you may think of activated abilities as something that cards on the battlefield use, like lands tapping for mana or planeswalkers using their abilities, theres actually no reason why we cant have abilities that activate from other zones
Most of these are unplayable, if only because their rules make no sense, and many came from poorly trained RNNs or RNNs with their temperature set up too high, thus causing them to innovate on what can go into cards a little bit too much
As anyone who has spent time with a card game knows, it's not just about having the rarest, shiniest card or winning when youre throwing down on the playmat
When Talion, the Kindly Lord enters the battlefield, you choose a number between one and ten, and whenever an opponent casts a spell containing that number either in mana value, power, or toughness you draw a card and that player loses two life
With the ability to customize your deck with various expansion sets, transform your deck and become the Pirate King