The safest way to use this card would be to utilize the spell damage right away. Could be used as a part of Freeze decks' finishing combo or basically anytime you need that damage leverage to deal with any board situation. Also, you could decide to use it early and ensure that you're not leaving any damaged minions on board (managable in some cases). That way you diminish the disadvantage by keeping Crush' cost at 7 mana. And last but not least, being a relatively cheap spell you could use it to proc thing like Flamewaker and Archmage Antonidas. Oh and love theme and a pun.
Anyway, Heartbot functions as a stall card. Ideal for otk or stall decks, it simply heals each player consistently throughout the fight, making it significantly difficult for either player to win through eventual damage. I made it a 3 drop so it wouldn't be produced by piloted shredders, so you won't have to worry about suddenly initiating a stall battle. Another function of this card is to absorb a silence, because most decks only carry 1 silence if any, leaving you to keep your sludge belchers safe. This card also fulfills 3 of the criteria, heals, summoning for your opponent, and heart design
Anyway, that's Heartbot.
EDIT: When Summoned: Time for some tough love! Attacking: Love hurts! On Death: Spread the Love!
Flavor Text: On fridays, he searches for his soulmate on Hearthmatch.com, hoping one day someone can show him the love he always shows to everyone else...
So, the flavor of this card is that the Breeder and another Murloc has some "mrglglgl" after your turn ends and gets a baby, an adorable Murloc Tinyfin. What is more romantic than getting a baby with that special someone?
Flavor Text:Everyone like presents. Unless they are from a rogue.
A very versative spell which suits every currently existing rogue deck.
Allows you to draw 2 cards for 1 less mana than Arcane Intellect but you have to use them the same turn or your opponent gains them. Are you willing to take the risk opponent gains your end game minion or do you build a low mana cost deck that always benefits from the effect?
On the other hand the spell benefits a mill rogue even if you don't use the cards you drew. In addition cards like Blade Flurry and Deadly Poison would be dead cards for most opponents although these too might turn against you.