Willow-Wind

Five mana for a 3/4 flier and scry 2 has no immediate material impact and is far below Modern's required rate.

Could be wrong if A presently unknown cheap blink or Elemental shell could value the ETB, though scry alone is weak payoff.

Legacy's cheap selection makes a five-mana 3/4 that only scries 2 effectively inert; it has no credible competitive role.

Could be wrong if An unknown repeatable blink shell could technically use the trigger, but the mana rate remains prohibitive.

It is dramatically worse than Mulldrifter: scry 2 does not repay five mana or a card, even with a reasonable flying body.

Could be wrong if A new common blink or scry-payoff engine could create a niche, but none is supplied.

A 3/4 flier that scries 2 is weak value at five mana and does not match Commander draw engines or impactful ETB creatures.

Could be wrong if Unrevealed scry-matters support or repeatable blink synergies could give its ETB a narrow home.

A 3/4 flier is a meaningful evasive body, and scry 2 improves draw quality; five mana keeps it solid rather than premium.

Could be wrong if Unknown format speed, removal, and blue's creature depth could make five mana too slow or make it mere filler.