Spreading Plague synergizes well with Strongshell Scavenger even at 10 mana, a board filled with 3/7 taunt minions is a strong play. Instead, it should be considered to hold on to Spreading Plague until a winning position can be achieved immediately after. Although this is especially helpful against aggro decks that tend to flood the board with small minions, it should be noted that stalling with no plans of potential stabilization is often not the best play. Their 1 attack isn't great, but having 5 health allows them to be durable. Having multiple 1/5 taunts is often enough to stall a few turns. Avoid playing it when you have equal or more minions than your opponent, as summoning a single 1/5 Taunt minion for 6 mana is extremely cost-inefficient. Spreading Plague is best played when your enemy has many more minions than you do, since it can quickly flood your board with 1/5 taunt minions for a reasonable cost. Contrast the behavior of Unleash the Hounds. For example, if you only have a Knife Juggler and your opponent has three minions with 1 health, and your first summoned Scarab causes your Knife Juggler to kill an enemy minion, you will not get a second Scarab, since you and your opponent now both have two minions. The condition that determines whether to cast Spreading Plague again is re-evaluated after summoning each Scarab and resolving the resulting triggers.If your opponent has a permanent, such as Sherazin, Seed, it does not trigger a 'recast'.If Spreading Plague causes itself to be cast repeatedly, these additional 'recasts' will not count as having been cast by the controlling player, and will therefore not trigger effects such as those of Gadgetzan Auctioneer nor add to the spell count of Yogg-Saron, Hope's End.

Hearthstone faceless shambler