mtg the professor card Onyx (#083) Artist Proof — KIERAN YANNER Tolarian Professor : r/custommagic

Both the Adventure spell and the creature on this card generate massive value

It also has zero mana cost to play so in theory, it can accelerate your available mana hugely in the early game, at least if you build multiple copies of the card into your deck and draw them quickly

The whole conversation, interestingly, started several years back when he and I talked about how threshold didn't do a great job of showing two states

A player can take several turns to be brought down to one life, but it only takes one turn to win out of nowhere with an Underworld Breach

All you need is eight mana, both of the recursive creatures, Ghostly Flicker, and Time Warp

The earliest that you can activate Sundial of the Infinite's ability is during your upkeep step, after abilities that trigger "at the beginning of your upkeep" have been put onto the stack but before they resolve