Mechanist

{t}: Put an inventor counter on Mechanist.
Remove X inventor counters from Mechanist, {t}: Create an X/X artifact vehicle token with crew 1.
If X is 3 or more, that token gains vigilance.
If X is 5 or more, that token gains flying.
If X is 8 or more, that token gains trample.
If X is 10 or more, that token gains indestructible.