0 mana cards mtg zero cost mana=0 0 mana counterspell... kinda... :

Devotion The gods of Theros aren't the only ones who appreciate a little love

Another great thing about Verazol is that the vast majority of kicker spells are ultra budget-friendly, as most of them are draft chaff that doesn't see high demand in constructed formats

It introduces 15 never-before-seen Commander cards with devastating Eldrazi-themed designs

Ma Chao, Western Warrior Ma Chao, Western Warrior can ride past even other creatures with horsemanship when attacking alone

WotC realized since the beginning of the game that this was a very powerful effect to print, and because of that great tutors are somewhat scarce