Considering tutors are often either setting up a winning turn or a desperate move to search for land, dropping an Opposition Agent at the right time can be stone-cold brutal
A rare FCA card is rarer than a normal set mythic, so losing to mythic ones will be like a 1 in a 100 draft experience
Just watch out for nontargeted wipes
If you dont want to look too hard for creatures that inherently have haste, this also isnt a problem, as you can simply give all of them haste with cards like Fervor, Concordant Crossroads, Rhythm of the Wild, or Fires of Yavimaya, making construction of a deck revolving around this card or Ogniss inclusion in a similarly aggressive deck quite manageable
Double strike is an evergreen keyword, so you can expect it to appear in every set
Quicksilver Amulet, Elvish Piper, Garruk, Caller of Beasts, and (if in White) Hunting Grounds can put creatures from your hand into play