If you added white to your deck, you could do the same thing but with Ephemerate and get a third Thoughtseize for free at the start of your second turn
Tamiyos Safekeeping Tamiyo's Safekeeping may seem kinda lackluster, with the bonus this time just being a little life, but its pretty important if youre facing off against an aggro deck
The key clause here is you have to play those cards during an opponents turn, forcing you to wait to cast most of your spells
Cerberus Supply Runners Tanuki Transplanter Tarkir Duneshaper Tesak, Judith's Hellhound Thraben Foulbloods Thraben Purebloods Thrashing Mossdog Trade Route Envoy Traveling Botanist Trusty Retriever Two-Headed Cerberus Underworld Cerberus Underworld Rage-Hound Vampire Hounds Warclamp Mastiff Wary Watchdog Watchdog Wild Dogs Wild Mongrel
Doctor Doom allows Connive to benefit you no matter the outcome: when you discard a land card, each opponent takes 2 damage, and if it's a nonland card, you still place a +1/+1 counter on the creature that Connived