braviary pokemon card price - 214/191 - Surging Sparks Pokémon Hit Points130 HP Form Pokemon Card Game/[BW5] Dragon Blade]Braviary

Firstly, and most importantly, it doesnt actually ask you to sacrifice the creature you want to use it with

Sacrifices for these colors are great ways of starting triggers like Blood Artist and more instants/sorceries wil care about Guttersnipes, and each are cool ways to build your Grixis deck in Commander

But because you know that they know, that creates the opportunity to bluff having specific instant-speed cards by choosing what mana to leave unspent on your turn

It already mills half of the opponent's library just by casting it, not needing to resolve, has a Ward that makes it hard to eliminate, and has stat line boosts and Annihilator based on the exiled cards in the game