Cranial Archive also provided a familiar means of mass hate, taking the Thran Foundry approach but also giving you a cantrip
That said, cards like Golos, the Tireless Pilgrim and Kenrith, the Returned King work extremely well with Zirda, the Dawnwaker, and both mana dorks and planeswalkers are essentially free (since tapping for mana and loyalty abilities are both activated abilities), while cycling also counts as an activated ability
Cyclonic Rift is particularly good, it has a useful two mana mode and is a one sided instant board sweeper at the top end
After a few more hours, I realized that Edge of Eternities Sealed is a lot less of a grind compared to recent sets such as Final Fantasy, Tarkir: Dragonstorm, and Aetherdrift
Here are all of the cards in the 'Mega Rising Museum 3' Secret Mission: Skiddo #228 (Full Art / One Gold Star) Rillaboom #229 (Full Art / One Gold Star) Chandelure #231 (Full Art / One Gold Star) Ludicolo #233 (Full Art / One Gold Star) Eiscue #236 (Full Art / One Gold Star) Gothita #239 (Full Art / One Gold Star) Goomy #247 (Full Art / One Gold Star) Stoutland #249 (Full Art / One Gold Star) Rewards: 36 Wonder Hourglasses, 12 Pack Hourglasses and 10 Shop Tickets
