Ulamog Spawn- Keeps fighting until shredded

Seble's pass brought them close enough for her to reach it with a solid thrust of her spear. As the point of her spear punctured the Eldrazi's side, the four blades of Gideon's sural slashed its back, slicing it open in four places.

But that was not enough damage to slow it down.
...
He lashed out ahead with his sural and gore splattered out of four more slices on its side. But the injuries weren't slowing it down.

He had to slow it down.
...
With a final thrust of power, he drove the Eldrazi straight into the ground, putting his whirling shields of magic up just in time to protect himself from the impact.
...
The crash dislodged his sural and Gideon snapped it back, winding it up. He jumped off the Eldrazi, and with his next breath he lashed out at the monstrosity, once, twice, again. Slicing off tentacle after tentacle, ripping into the tenderest parts of its flesh.

The thing chattered and squealed; the unnatural noises only spurred Gideon on.
...
A pile of Eldrazi gore and strips of flesh lay at Gideon's feet. There was nothing left to destroy. He dropped his arm and his sural fell motionless at his side.

(The Survivors of Sky Rock )