But in aggregate, high-damage-rate creatures like Jackal Pup and Goblin Guide will tend to speed up the format, which gives high-MV cards more risk in the metagame, which decreases the number of viable high-MV cards in that format, which increases power level
Blade of the Bloodchief still works in +1/+1 counter decks, too
However, he also shines as a part of a deck that uses these mechanics, and the potential power spike from being put into something like a Laughing Jasper Flint deck is well worth looking at for any player already playing said deck
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The flexibility of this ability triggering from non-creature spells means you could very easily run Saruman as an artifact or enchantment commander, opening up interesting deck-building options while keeping to the flavour of this key villain