Random Generator gave me Hollow Dogs and Raging River. I have no idea what a balanced cost of this is, so I took a stab and said "Fact or Fiction's Mana cost?". It's coming at you for 5 damage each turn, and requires two creatures to block it all... but it's still worse than a 5/3 with Trample.

Buwhahaha?! That is one mad, silly, delightful card.

Do you have a Doubling Season in your set?

Hasn't popped up yet. I did occur to me, though, that this thing is very good with Trumpet Blasts. Oh, it also happens to work very nicely with the Emperor's Kennelmaster, effectively doubling the damage output. I have a hard time arguing with that, though.

Now that there's some serious damage output, I kind of want to up it by . Since it's rare, though, I'm going to leave it alone until it's proven to be out of control. I don't want this thing to look horrible.

This is so much fun... but shouldn't the tokens vanish at end of turn? Otherwise, the scaling on this is ridiculous.

Mmm, you do have to attack with it - but as written you have to kill each of the copies (and they have 3 toughness) or it'll go massively exponential.

If the copies are 'just' 1/3 no ability tokens.. it's still pretty nutso if they can't kill the original, but at least they have hope.

Whoops. Yeah, this wasn't supposed to be a super-token engine. It's got enough combos waiting for it as it is. Added "Sacrifice those tokens at end of turn" to the end.

While we're at it, I'm also changing it to 1/3 hound tokens, as opposed to copies. I almost want to reward players who are clever enough to pile 4x Relentless Assaults into this deck, but that clearly wasn't the point of the card.