Thundarr, Scourge of Artifice

Whenever Thundarr or another Ally enters the battlefield under your control, destroy target
artifact you don't control.
Whenever an Ally you control is blocked by one
or more artifact creatures, it gets +X/+0 and
trample until end of turn, where X is the number
of artifact creatures blocking it.
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"MA-CHIIIIIINES!"