If the last target is an illegal target as Tandem Takedown resolves, or if both of the first targets are illegal targets, nothing deals or is dealt damage
As you probably have guessed, it's not a shift in the meta that's caused Booster Tutor to spike: the card isn't legal in any sanctioned MTG formats, after all
Cantrips like Opt and Consider are essential: they give me cheap card selection and the ability to dig for answers, and when paired with value engines like Talrand, Sky Summoner and Murmuring Mystic, they can add up to a massive board before long
If Summoned this way, while this card is face-up on the field, any card sent to the GY is banished instead
The blue and black sword gives the equipped creature +2/+2 and protection from blue and black, helping your creature to avoid most of the removal spells in the game