mtg best delirium cards / card-types-matters in red/green : r/mtgcube Standard Delirium - Star City

White weenie decks don't really have a use for all that extra mana should they fail to Armageddon, so trading two mana for one more point of damage each turn stands as a pretty fair bargain

If that upside is exiling the countered spell, people are OK

Overall, a decent card in specific builds

2 Knowledge Exploitation Prowl is a short-lived mechanic introduced in Morningtide, allowing a spell to be cast for an alternate cost as long as an opponent had been dealt combat damage by a Rogue that turn

Agent of the Shadow Thieves is a 2-drop background that will let my attacking Durnan get a +1/+1 counter and deathtouch and indestructible until the end of the turn