Worse yet, tapping down creatures doesnt remove the actual threat tapping down a Zulaport Cutthroat still leaves you open to their aristocrats effects, for example
With some tools like Crucible of Worlds, you get to do it every turn
Before this change, Wizard Mentor was a first pick card which could save your creatures from creature kill spells, allow you to reuse the bevy of 187 creatures in the format (Ghitu Slinger, anyone?), and at worst case scenario allow you to play emergency defense
As a bonus, Aetherwing can potentially be a cheap but potent aerial swinger, since the cards color identity could easily set up its required power boost and the ETB token immediately becomes its first crew target
They mutate into the creature on top plus all abilities from under it.) Double strike Whenever this creature mutates, it deals 4 damage to target creature or planeswalker an opponent controls and you gain 4 life
For those unfamiliar, Modern Cheerios relies on a boatload of zero-mana Equipment that pair nicely with Sram and Puresteel Paladin