Tyrranax Rex 
Creature — Phyrexian Dinosaur
This spell can't be countered.
Trample, ward , haste
Toxic 4 (Players dealt combat damage by this creature also get four poison counters.)
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL