The fact that the second card is so loosely restricted, and Force is so universal (and technically hard-castable) makes it playable in any fair blue deck, and so gives a large portion of the format the necessary panic button to discourage super-aggressive combo
Meanwhile, Tymaret Calls the Dead gets us to a Turn 4 Uro all by itself, if we can make the mana work, with the added bonus of potentially milling over some copies of Uro, Titan of Nature's Wrath along the way
If you just need an extra copy of a winning card, add a transmute card as a supplement to your more expensive tutor suite is a decent way to get it out of your giant Commander deck
If a resolving spell or ability instructs a specific creature to connive but that creature has left the battlefield, the creature still connives
Sorcery Arcane Search your library for up to two basic land cards, reveal those cards, put one onto the battlefield tapped and the other into your hand, then shuffle
Compare the chase-card-to-box ratio: S10Bs 1.0 ratio is unusual most sets with a named chase card trade at 45 the cards value