Riders of Rohan lands on this list because it's a fairly straightforward Jeskai deck that focuses on getting creatures on the battlefield, increasing their power and toughness, and swinging at your opponents for big damage
On Thin Ice On Thin Ice looks like a fine payoff for building a snow deck, but this hyper-efficient Oblivion Ring variant is worth playing snow lands for, especially in decks that care about enchantments
Madam Mims ability to bring cards back into your hand or into your discard pile combos perfectly with Merlins ability to generate lore, grant other characters additional strength or draw cards as his cards enter and leave play
A robust lifegain engine will grant you access to plenty of card advantage to keep up with the downside
The only caveat with this card is it can't attack during the extra turn
In addition, new prints and versions were released that had been updated to the TCGs current standards, making them playable as of the expansions release