How good is that, given that its first of all symmetrical, and second, in a world of proliferating EDH board wipes
While the drawback is that you have to sacrifice it if you dont pay the creature's mana cost, classic combos like Flash-Hulk have dominated formats due to their ability to set up lethal boards in an instant
The Timey Wimey decks signature mechanic is Time Travel, which gives you immense flexibility regarding how you manipulate your time counters
This means that more or less you seem to be able to bank them and then turn in a bunch of them any time you want to build a deck
For example, if we had the main character choose Zenigame (Squirtle), then some of the kids would say, "Hey, I chose Hitokage (Charmander)," and that would lead to the kid saying, "Who needs this show!" Hatakeyama & Kubo (2000), p