And yes, that's every turn, so a humble Soul Warden sitting in play can easily pump out another 5/5 on each of your opponents' turns too
Prosthetic Injector is a super-cheap Equipment with a very cheap equip cost, and since toxic abilities can stack, you can push someone to corrupted levels of poison pretty quickly in the early-game
Tail Smack20 Market price $0.41 Based on the latest market prices tracked on TCG Stacked
Normally, I'd now examine the effect and history of the spiking card, but in this case it doesn't seem like anyone is purchasing it based on the rules text
Until end of turn, that creature gains trample and haste and gets +X/+0, where X is the number of those people who applauded
Dropping one damage counter on every opposing character can have huge ramifications, especially with so many viable combinations of cards that affect already damaged characters