Nahiri's Warcrafting (Extended Art) [March of the Machine] DYN090 Whenever you cast a spell

Whenever you cast a spell whose name begins with the chosen letter

When Tyrant of Kher Ridges enters the battlefield

this gets +3{p}

Set: Phyrexia: All Will Be One Commander Type: Sorcery Rarity: Rare Cost: {2}{U} Choose one —

Sacrifice Rakdos Riteknife: Target player sacrifices a permanent for each blood counter on Rakdos Riteknife

Nahiri's Warcrafting (Extended Art) [March of the Machine] DYN090 Whenever you cast a spellSet: March of the Machine Type: Sorcery Rarity: Rare Cost: {1}{R}{R} Nahiri's Warcrafting deals 5 damage to target creature, planeswalker, or battle. Look at the top X cards of your library, where X is the excess damage dealt this way. You may exile one of those cards. Put the rest on the bottom of your library in a random order. You may play the exiled card this turn.