Chandra, Spark Hunter

The combat trigger is what pins this Chandra to an archetype rather than a color: at the beginning of combat on your turn she can turn a Vehicle you control into a hasty artifact creature without paying crew, so she both makes attackers and animates them the moment they land. That answers the perennial friction of Vehicles as a mechanic, which is that they sit inert until you commit bodies to crewing them. Her zero produces a 3/2 Vehicle with crew 1 to feed that same loop, so the two abilities close a circuit: build a Vehicle, animate it in combat, swing, repeat. The plus is deliberately quiet, a loyalty-gaining rummage that filters through an artifact-and-graveyard shell (sacrifice an artifact or discard, then draw) rather than generating raw advantage, which keeps her from being a value engine on her own. The ultimate reframes the whole card: an emblem that deals 3 damage to any target every time an artifact you control enters, converting a board of tokens and equipment into a repeatable burn source that no longer needs combat at all. She is one of the more coherent artifact-Chandras printed, a planeswalker whose entire kit assumes a battlefield of colorless permanents rather than a stack of red spells; the payoff for building that way is a trigger that does something every combat and an ultimate that turns artifact density directly into reach.