Stronghold uncommon.
On the original list of cards for Planeshift, this card was insane with gating (and too powerful even on its own).
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Urza’s Legacy uncommon.
Rack and Ruin was on the original list for Darksteel but was removed for being too good against the block’s central theme.
Weatherlight it was actually Volrath.
Urza’s Destiny rare.
During design Replenish affected both graveyards. It was changed to differentiate it more from Living Death.
Urza’s Saga common.
Hush was the first cycling card ever designed.
Legends uncommon.
Like all legends at that time, Riven Turnbull was restricted to 1 copy per deck until Ice Age was released in 1995.
Mirrodin rare.
Although its price is somewhat steep compared to other Standard sweepers like Wrath of God and Akroma’s Vengeance, Solar Tide’s versatility and creature selectivity could earn it a powerful place in a deck alongside fatties or weenies.
Mirrodin common.
While Chimney Imp is tied with Skirge Familiar for the title of “Magic’s priciest imp” at 
Mirrodin uncommon.
As originally designed, this Safe Haven-like artifact could only save artifacts. It was reduced in cost and changed to “target permanent” to widen the applicability of its unique effect.
