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Enchanted Defender. Heaps of armour, but only 1 life.
Cheap to play if you find a way to keep him alive.
Up close and personal for example. Means he'll only face melee cards; which will have to hack through his armour, getting thorns for their efforts.

Hey thanks for the info,
I just bought one and gonna try him out :)
Do you have any tactic for keeping him alive?

Look at which splinters are available, your opponent is just as limited as you are.
If Earth and Death are unavailable for example, then put him up the back as sneak insurance.
Very unlikely your opponent has Shin Lo.
Otherwise it's all about the rulesets.
Weak Magic and Up Close and Personal mean he's only vulnerable to poison.
Supersneak and Melee Mayhem mean you can bury him in the middle of your lineup and he can attack from anywhere without being easily targeted by magic dealers.
His armour means he can survive retaliation and thorns from doing so. (although again, check which splinters are available. Death and Fire each have poison retaliators.
That said, they only have a 50% chance to retaliate, and an additional 50% chance to poison, so maybe roll the dice anyway)