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When I first saw Unpredictable Cyclone, the first comparison that came to mind was Possibility Storm, which has the same mana cost and basically the same mechanic except it triggers when a card is cast rather than when it is cycled
Baseline Lay of the Land is fine, it is a bit of fixing, a shuffle, a way of filling up the yard a bit, just a nice cheap way of thinning the deck and tinkering with your land ratios
Yathan Roadwatcher fits well into aristocrats or toolbox strategies where sacrificing and recurring low-cost creatures is key
Some early vanilla creatures have actually become nicknames, with "Grizzly Bears" describing any 2/2 two-drop creature, but this modest green creature has been made obsolete by now