mtg cards to untap creatures Rules Text: Tap or target, 44 Rules Text: untap, lands, 72

Since theres no annoying once per turn clause here, you can play your noncreature spells whenever you like, which allows you to hold up your mana until you need it most

Potentially, new playtest cards could fix this issue, however, those arent a reality just yet

Then, as that second ability resolves, Ancestral Katana becomes attached to the creature that attacked alone

Whenever one or more nonland cards are milled, put a +1/+1 counter on each of up to X target creatures, where X is the number of nonland cards milled this way

Utilising the power of Whirler Virtuoso to power out Thopter Tokens and Aetherworks Marvel to drop in the titans of Emrakul, the Promised End and Ulamog the Ceaseless Hunger