Well cyrus is a must stop card, and if you dont have a 4p removel you will problably use yeno on it.
With joacquim in will play for 3 (body remove) + 3 (body on your side) + 8 (joacquim boost) + 6 (tokens created) - 4 (joacquim body in other side) - total of 16 points.
But you get 4 coins, if you use it its a total of 20 points. If you have one or two bronze firesworns in your gy you can spend with cyrus.
So 16 points + 4 coins for 19 provision. Its not that much, but still worth it. And, of course, you will remove the opponetn cyrus and stop it grows.
If you are not using with joachim and using in later rounds its only cyrus playing for 9 points + 4 coins (in the same range i said about the other cards betwen 9-12 points).
Tinboy. Well, tinboy its too situational too, buuut.
With joacquim in will play for 4 (body remove) + 4 (body on your side) + 8 (joacquim boost) - 4 (joacquim body in other side) - total of 12 points.
If your opponent has 3/4 units in a row its a total off 18-20 points. Its not that dificult.
Again, playing it in the next round its 4 points plus 6/8 points damage, getting the 10-12 points the other cards i said. And lets be honest, its not that dificult to use him in a row with 3/4 cards, unless its a short round.
But one more time, all of this its situational as the same its situational for the payer who plays it. If the guy who stole tinby its situational, the same goes for the guy who played it.
And, again, all those cards has a value betwen 9-12 points, and can be even more