A card that costs 1 less for each creature you control is said to have affinity for creatures. There are enough artifact-themed sets in rotation at any given time that its as good a time as any to study up on affinity
For example, if Tidehollow Sculler's enters-the-battlefield ability is copied and two cards are exiled, they both return when Tidehollow Sculler leaves the battlefield
This ability will only trigger if a creature hits an opponent, not you, highly incentivizing your opponents to attack anyone else other than you to get those extra cards
Instant Color tag templates(None) Color tag templates(None) Vampiric Tutor Search your library for a card, then shuffle and put that card on top
Liliana, The Last Hope Liliana, the Last Hope is one of the most powerful printings of an extremely iconic Planeswalker
Sire of Stagnation Eldrazi for the Win-Razi