pokemon cards charizard xy 2016 Generations Radiant Collection Rc5 Gen.Radiant Collection This Charizard card from XY Pokemon XY Evolutions Booster Pack

Dark Charizard (although credit to the sets secret rare Dark Raichu for being pretty cool too)

Those are Delirium -enablers, but the payoffs are even sweeter

For example, to find cards that trigger when attacking, we can start with Krenko, Tin Street Kingpin and take the text for his triggered ability

Muldrotha, the Gravetide in particular can return the Pernicious Deed for another bite at the apple, which can be a real hassle for some decks

What competitive formats is Helpful Hunter played in

As Ive stated before, these shared abilities are going to get out of hand, and adding Double Strike to Trample will certainly cause someone distress