is legendary a card type in mtg How Does the Legend Rule Work Magic? MTG card types explained -

If the target player is an illegal target as Bloodroot Apothecary's second ability tries to resolve, it won't resolve and none of its effects will happen

The card's only real drawback is that if you flip it in combat, you won't get the first trigger from Holy Frazzle-Cannon until the next turn, which makes it a lot worse than something like Invasion of Gobakhan

Although The Prismatic Piper has a special rarity of "S," not common, you can open one here since it acts similar to a common

Black can destroy all creatures your foes control on its own with In Garruk's Wake

Illustrated by Bruce Brenneise Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Legal Modern Not Legal Brawl Legal Legacy Legal Comp

The only thingbesides the obvioustying the whole thing together is that they all feel like core pieces in different combo/synergy decks