Megistotherium

Megistotherium is a Prehistoric card of the Fire attribute. At low levels it can provide some use, but beyond that there are other cards that out-perform it.

Intimidating Size
When this card is played, any cards your opponent controls with base HP equal to or less than the base HP of this card are paralysed for one turn.

Bone Crusher
Bone Crusher deals adequate damage in comparison to its owner, but has no further effects.

Origin Information
Megistotherium is a creodont from Miocene Africa. It is among the biggest known carvinorous mammals, rivaling or surpassing Andrewsarchus, depending which reconstruction of the later you believe. It is quite possible that Megistotherium was actually rather slow and clusmy, meaning it may have scavenged rather than actively hunting.

Using Megistotherium
At low levels of battling, Megistotheriums' ability can provide usefull. However, beyond that its ability has no use under normal curcumstances, and is out-shined by others such as Stegosaurus.

Defending againt Megistotherium
Your best and easiest option is to simply use a card with more HP to avoid its ability, if possible. Otherwise, basically just attack it until it goes down.