Molten-Core Maestro The fact that Molten-Core Maestros opus ability can give you enough mana to cast your next big spell and potentially chain big spells together puts it in combo territory, and it seems pretty easy to go off with any buyback card
These are purely optional, and there are plenty of cheaper generic options, but if one of these items suits the cards in your favourite deck, its fun to coordinate
You choose whether each token is attacking the player or a planeswalker they control as the token is created
Assuming you play Keene turn 4, and attack turn 5, thats a decent chance of finding a Gate
This incredible ruby card is the single most pricey card in The First Chapter in terms of ink, requiring a huge nine ink to even get onto the table
Better yet, casting two or more non-creature spells (which you'll likely be doing already anyway) gives Lyse Hext double strike, meaning you'll be dealing double damage with any attacks on top of whatever effects come from the non-creature spells you've been casting (which, again, are cheaper thanks to Lyse Hext's signature ability)