Scaredgirl will bash you for making them able to synergize only with each other.
Also, how does this work if:
-they both team up
-there are multiples?
Aside from that, Tim is an awesome attacker, dealing up to 12 damage and for just 5 and Paradox-immune and with good 5 HP, while Burk... well, comparable to a Sapphire Charger, probably.