ironhoof boar mtg card text this isnt a creature.) Flinthoof Boar - Eternal Masters

That said, when considering that this is a payoff to a boardwipe, Sozin turns into straight value, even if it does just end up eating a removal spell

For example, if there are two +1/+1 counters on Aerith Gainsborough and it gets three -1/-1 counters, you'll put two +1/+1 counters on each legendary creature you control when Aerith Gainsborough's third ability resolves

Theres a significant leap in effectiveness from a 2-mana counter to a 3-mana counter, but at least Render Silent doesnt have a stipulation on what type of spell it counters and then prevents your opponent from casting

And heres a glimpse at the full artwork of the base Jecht, illustrated by Michael MacRae