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They also won't trigger if a card on the battlefield transforms into a card with the legendary supertype, the artifact card type, or the Saga subtype

Back Optimus Prime, Autobot Leader Legendary Artifact - Vehicle Living metal (As long as it's your turn, this Vehicle is also a creature.) Trample Whenever you attack, bolster 2

The downside of these cards though is lots of playgroups really don't like these cards so it's rude to play them at those tables, and also their win% goes down if your opponents both hate these cards and know you run them since they will gang up and kill you (ignoring everything else) so you don't get a chance to cast them

Venom, Deadly Devourer A black-green Legendary Creature card with vigilance and menace