Python 2, 62 bytes

from random import*
print'Min%sraft'%'ec'[::random()>1e-4or-1]

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If a probability of \$\left({92 \over 256}\right)^9 \approx 0.0000999841\$ to print Minceraft is fine, 60 bytes is possible:

import os
print'Min%sraft'%'ec'[::max(os.urandom(9))>91or-1]

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Python 2, 62 61 bytes

-1 byte thanks to xnor!

from random import*
print'Min%sraft'%'ceec'[random()>1e-4::2]

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If a probability of \$\left({92 \over 256}\right)^9 \approx 0.0000999841\$ to print Minceraft is fine, 59 bytes is possible:

import os
print'Min%sraft'%'ceec'[max(os.urandom(9))>91::2]

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Python 2, 63 bytes

from random import*
print'Min%xraft'%(236-30*0**randrange(1e4))

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Python 2, 62 bytes

from random import*
print'Min%sraft'%'ec'[::random()>1e-4or-1]

Try it online!

Python 2, 62 bytes

from random import*
print'Min%sraft'%'ec'[::random()>1e-4or-1]

Try it online!

If a probability of \$\left({92 \over 256}\right)^9 \approx 0.0000999841\$ to print Minceraft is fine, 60 bytes is possible:

import os
print'Min%sraft'%'ec'[::max(os.urandom(9))>91or-1]

Try it online!