When you have them, have sent enough Energy cards to the Discard Pile, and have a few Mirage Gate cards in your hand, its time to build your attacker
This is likely why the three most popular Mono Blue commanders are ones that provide mana advantage: Urza, Lord High Artificer turns all your artifacts into mana rocks, Orvar, the All-Form lets you easily make copies of your lands and/or mana rocks, and Minn, Wily Illusionist ramps out permanents (including lands) whenever your illusions die
3/3 Legality Vintage Legacy Premodern Modern Pioneer Standard Duel Commander Commander Multi Historic Alchemy Other Sets Choose (6) Prerelease Promos The Lord of the Rings: Tales of Middle-earth 1 The Lord of the Rings: Tales of Middle-earth 2 The Lord of the Rings: Tales of Middle-earth 3 The Lord of the Rings: Tales of Middle-earth 4 The Lord of the Rings: Tales of Middle-earth 5 See all prints of this cards Illus
We're just not making fans re-buy one of them every year because Foundations is going to be there in the background." But I think it's pretty clear this is a seismic shift
Maybe a card idea gets filed and sticks forever, maybe it gets tweaked in playtesting, or maybe it gets cut completely. In the final Play Design Stage, a separate Wizards of the Coast team with a background in competitive Magic vets the nearly complete set for its competitive elements, sending back proposed changes to fix any balance issues
