mtg cards that reduce activated ability cost make abilities cheaper Cards that make activated abilities less? : r/EDH Companion — Each permanent card in your starting deck has an activated ability Biomancer's Familiar | Ravnica Allegiance

Trample and Double Strike Trample also works well with double strike an ability that allows creatures to deal twice as much damage during combat

Combined with this great Rakdos commanders activated ability, youre essentially also getting generic mana on top of whatever benefit you paid for with cards like Bolas's Citadel or Necropotence

There could easily be more incidental combos I missed in the build, by the way

Karmic Guide "Your choices have led you to this place." Karmic Guide is a card that never sticks around for long but also keeps coming back

Since then, prices have only been increasing more and more as supply continued to dwindle