We can do 40% + 40%(60%) to find the chance that we have EITHER our creature X or a pact in hand, which gives us 64%, meaning we win 1.77 games for every 1 our opponent wins
Although Boros Convoke doesn't have any explicit Clues synergy, it's very common for this deck to put Clues to work by turn 2 : You open with an Inspector, then follow on turn 2 with either a Warden (and tap everything to pump it), a Demolition, or in a pinch just crack the Clue to draw an extra card
The classic untap all my stuff combo is Dramatic Reversal and Isochron Scepter, but Aphetto Alchemist + Illusionist's Bracers will also tap and untap an artifact infinitely
No matter what happens, wheels and Relentless Assault effects have some upside
We considered things like legendary sorceries to parallel the single-effect summons, but none of those versions had the resonance of showing them as a creature
and, in the end, I was very happy with the results