If Virtual Card Advantage isnt enough and you want to go slower still, then theres always Aura of Silence
These Secret Lair variants are likely to be worth a bit more across the board
7: Destroy all non-Dragon creatures
Freejam Regent : Creature (Dragon), casting cost of four generic and two red mana, 4/4
Nahiri's Resolve gives all your creatures haste and a small board pump, but more importantly, lets you blink as many artifacts and creatures as you'd like, kind of like Yorion, Sky Nomad, but once per turn
I personally believe synergy plays the most important part in deckbuilding and many times some theoretically weaker cards can have so great synergy with your deck/strategy that they can be greater options than the general best overall cards (and can be a super budget option too, as they only work with too specific decks/strategies.) Synergy applies to all categories analyzed in this article but also to cards that do not fit in any of the categories above but has a unique utility