At the beginning of your upkeep, put a time counter on Infinite Hourglass. All creatures get +1/+0 for each time counter on Infinite Hourglass. {3}: Remove a time counter from Infinite Hourglass. Any player may activate this ability but only during any upkeep step.
![Infinite Hourglass [Ice Age]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/products/76300508-fb04-5cdf-9b4d-7df93867f35f_2e00e19e-405e-49b7-a6f7-e8a5315c8649.jpg?v=1698566488&width=1445)