(If it has no +1/+1 counters on it, put three +1/+1 counters on it.) Mana that you add with Jetfire, Ingenious Scientist's activated ability can be used on anything that isn't a nonartifact spell
Your deck only has a few mana sinks, none of which are particularly amazing
Planisphere notably plays quite well in tangent with Cori-Steel Cutter, another Standard-legal MTG card seeing success in Standard, Modern and Legacy
Not only is Anti-Venom immune to damage, it can also instantly resurrect something, burping up whatever strong creature is in your graveyard as soon as it comes down
Apart from these cards, the rares from Unhinged and Unglued are basically worthless, and even the handful in the $23 range are pretty hard to sell for a reasonable price, with high spreads if you look to sell them to a buylist and little demand in trade binders
The reason Oko is so great as a sideboard card in Modern is that it answers opposing sideboard cards, in this case, cards like Chalice of the Void, Damping Sphere, and Collector Ouphe, while also offering a compact Plan B that can potentially win a game on its own
