Thought Scour puts a random card into your hand, Opt lets you choose a known card or the mystery box, Sleight of Hand is the same two-card choice with an open mystery box, and Serum Visions lets you keep both or neither of the two cards you see
There are relatively few actual tribal sets in Pioneer, and you only hit things like Modern Spirits or Humans with the redundancy that comes with multiple sets of payoffs
This is the most classic Aggro deck in the format it can lock out games blisteringly fast, but if your opponent can stabilize or if you stumble and run out of threats, it can be hard to recover
If a triggered ability is linked to a second ability, additional instances of that triggered ability are also linked to that second ability
I tried out different numbers and amounts of life loss, but the Sleeper Agent problem was quite real here: it was hard to get this at a rate where it was fun while encouraging you to keep it or give it away in different games
Loading up your creatures with counters