mtg mimic card Vat Each other creature you control of the chosen type enters the battlefield with an additional +1/+1 counter on it. MTG card spikes by 300%

But this one is barely over-costed, which makes it a fantastic reward for loving your swamps

Im not sure anyone has exactly figured out how easy it is to get to delirium, as Traverse the Ulvenwald is the only other payoff and is super-complicated, but plenty of midrange or tempo decks seem really good at getting to a 4/5 Tarmogoyf

You might want to have Unwinding Clock or Drumbellower in play before you do that, though

Its an infinite card-draw combo with Wizard Class too since youll be putting counters on the seer, drawing cards, and doing it again

Of course there is the mana cost as well, which brings me to our next selection: Painful Truths This card dominated in standard at the end of 2015 and beginning of 2016