Emrakul- Rapidly regrows tentacles

But though her power didn't fail her, her body did. She hesitated for a second, took a long breath, and in that gap Emrakul surged, its body and tendrils regrowing at a faster pace than Liliana thought possible. Several thick tendrils lashed at Liliana only to wither and desiccate at the touch of her magic, but several more quickly followed. Where once each blast from Liliana drove Emrakul back, now it was all she could do to stand her ground.

(The Promised End)