Companion of the Trials

The activated ability is the entire reason this Bird exists, and it is fenced behind a conditional almost no other untapper carries: you can only spin it up while a Gideon planeswalker sits on the board. That gate is the design point. An untap for two mana is cheap enough to fire every turn, and repeatable untap effects normally have to justify themselves against vigilance and creatures that simply stay up on their own. Here the cost is paid not in mana but in deckbuilding commitment: without the named planeswalker beside it, this is a plain evasive body and nothing more, which turns a three-mana 2/2 into a payoff slot rather than a generically playable creature. The untap is more pointed than it first reads, too. A flier that can swing and then untap to block, or untap a tapped attacker mid-combat at instant speed, is a small evasive body with a combat trick welded on, live only once the anchor has landed. Note that the check is binary: it asks whether you control a Gideon, not how many, so the ability comes fully online the instant the first one resolves and never gets better for a second. The card is built to reward stacking one particular legendary permanent over raw efficiency, sitting inert until its anchor arrives and flipping to useful in a single land drop.