The Irencrag's last ability lasts indefinitely
I spent a lot of time investigating this theme
If your lands are never going to untap, there's little harm in sacrificing them and turning each land into two mana makes the upkeep on Stasis maintainable on a permanent basis
If your deck reliably creates the same tokens or uses emblems, printing them is worth it
Over the years, the game has seen many cards in black with similarly demanding mana costs, though most, like Griselbrand, were creatures that could be reanimated
$19.99 (33% off) amzn.to/4pnaecH Target $24.99 mavely.app.link/e/7eCPA8fv5Vb Comes with a "Glimmer Foil" Elsa Promo Card, 5 random booster packs from previous sets, storage box, & 3 dividers