Dragons cost a lot of mana, so early game, you'll more often than not have an open battlefield
Fear of Change, a 2-drop Simic creature from Alchemy: Duskmourn
Okay, tragedy is overstating it, but if you want the downside of "homogenization", then you're looking at it
When it comes to the corners of Magic cards, theyre rounded at a radius of about 0.125, or 3mm
Collectors can keep these 60 cards and the rest of their collection safe from earth giants and persistent gales in the beautifully illustrated box.
An extra turn might not seem that amazing considering you won't have much mana left the turn you cast this, but the real power is that it gives you the opportunity for all your other creatures and planeswalkers to provide extra value