Cards that are good with redundancy, like Blood Artist or Mirkwood Bats, are very interesting targets to copy, as well as creatures that die into something stronger
And theres no tap involved, so this can come down, equip, and activate all at once
The Doctors companions use a mechanic called Doctors companion, which is similar to partner, but reads, you can have two commanders if the other is the Doctor. Blast From The Past Commander Deck The Blast From the Past deck is blue, white, and green
We've got Reclamation SageReclamation Sage, Foundation BreakerFoundation Breaker, and even Bane of ProgressBane of Progress
You pay 2 mana, tap the equipped creature and do 3 damage to any target
Secret Lair: Doo-ay Noo-lah Between these Universes Beyond reprint Secret Lairs, Doo-ay Noo-lah is the weakest one by quite a long shot