Snare of Futility

If an opponent cast a spell this turn, you may
pay {5} instead of Snare of Futility's mana cost.
Create four 1/1 colorless Futility-Bot Artifact
Creature tokens with "This creature cannot
attack or block" and two 1/1 colorless Futility-
Droid Artifact Creature tokens with "When this
creature enters the battlefield, it phases out"
The defence network at the 'Halls of Futility' has
been charitably described as Apathetic. Many
opponents insist on the removal of the letter A....