If an effect allows a player to cast a spell without paying its mana cost, that player can't choose to cast it and pay its mana cost unless another rule or effect allows that player to cast it that way
Blood for blood, flesh for flesh, Leshrac, my lord. Lim-Dl, the Necromancer Illustrated by Richard Thomas Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Not Legal Brawl Not Legal Legacy Legal Comp
that's a list I will be making and going over in the near future, so if you're interested in my personal top Eldrazi picks, be sure to keep your eyes peeled for that
You and I likely disagree about certain religious or metaphysical truths as well, but that doesnt make either of our beliefs less valid
Its not always easy to get to the cards you need to win
Sorin, Solemn Visitor Can a 4 mana card really answer a deck that tries to win by turn 4 itself