It never hurts to revisit the fundamentals. Today Corbin Hosler returns to some basic principles in MTG finance, opportunity cost and diversification.

Corbin Hosler looks at the movement of some–what else?–Merfolk staples, and explains how a slow holiday season creates opportunities.

Corbin Hosler looks at cards that benefited from break-out decks last weekend, as well as some criminally-undervalued Modern cards.

A recent debate has arisen in the forums about how to time sales of a spiking card. Corbin Hosler lays out his philosophy and the reasoning behind it.

Corbin looks at some cards that keep going up after their post-Pro Tour spike, and discusses where specs from last year stand.

In the wake of recent events, Corbin Hosler asks what channels are available to stop sellers from cancelling orders. The answer may surprise you.

Corbin Hosler relates his experiences at GP: Oklahoma City, selling to dealers, trading on the floor, and writing for Wizards’ official coverage team.

Corbin Hosler examines the state of his fall rotation specs, with Jace at the top of the list. What should we do now that these cards have spiked?

Corbin Hosler grades his predictions for Magic 2014, to see where his analysis was correct, and where it was lacking.

How do we define failure in speculation? Does every loss count? Corbin looks at some of his own gaffes and asks how they should inform future decisions.

Again it’s time for the review of Corbin Hosler’s set review! Corbin looks back to his predictions about Gatecrash to see what he called correctly and what he missed.

Corbin discusses potential speculation targets that are appealing in light of recent spoilers from Dragon’s Maze.

The recent spoiling of Beck//Call has already impacted Modern prices and is sure to make more waves. Corbin discusses which cards are still ripe to benefit.