Ghalta and Mavren - 225p R PMOM

Trample
Whenever you attack, choose one —
• Create a tapped and attacking X/X green Dinosaur creature token with trample, where X is the greatest power among other attacking creatures.
• Create X 1/1 white Vampire creature tokens with lifelink, where X is the number of other attacking creatures.

rare
Legendary Creature — Dinosaur Vampire
From the Magic: The Gathering set March of the Machine Promos.