The Sibling

Whenever you cast a Spren spell, create a
Mafah'liki token.
At the beginning of combat on your turn, untap
each Spren you control.

{w}{u}{b}{r}{g}, {t}: Put three +1/+1 counters on each Spren you control. Activate only during your turn.

Navani saw the tower now as an entity, with lines of garnet very like veins and arteries.
based on Urtet, Remnant of Memnarch