Immortus, Master of Eternity Secret Lair Activated abilities of creatures can't

Activated abilities of creatures can't be activated

Permanents you control with counters on them have ward {1}

Climb atop a sky bison and travel from the walls of Ba Sing Se to the heart of the Fire Nation and restore balance to the world—or conquer it

" Whenever an artifact an opponent controls is put into a graveyard from the battlefield

If two or more creatures are tied for least power

Immortus, Master of Eternity Secret Lair Activated abilities of creatures can't{T}: Add {U} for each card you've drawn this turn. Spend this mana only to cast noncreature spells. Power up {5}{U}{U}: Each player shuffles their hand and graveyard into their library, then draws seven cards. Put a +1 +1 counter on Immortus. (Activate each power up ability only once. Reduce the cost by his mana cost if he entered this turn.)