Archaeon the Everchosen - Najeela, the Blade-Blossom - [Borderless] Secret Lair Drop (SLD) Guild remove a shield counter from

remove a shield counter from it

Sacrifice Emergence Zone: You may cast spells this turn as though they had flash

We must find another source of mana—one that is growing despite our withering world

and Rafal Wechterowicz (Too Many Skulls)

Archaeon the Everchosen - Najeela, the Blade-Blossom - [Borderless] Secret Lair Drop (SLD) Guild remove a shield counter fromWhenever a Warrior attacks, you may have its controller create a 1 1 white Warrior creature token that's tapped and attacking. {W}{U}{B}{R}{G}: Untap all attacking creatures. They gain trample, lifelink, and haste until end of turn. After this phase, there is an additional combat phase. Activate only during combat.