It makes sense: They want new sets to be compatible with everything that came before, and this is an easy way to do it
How often do you see dying creatures in multiplayer
Thats two flavors of weird right there
Ureni of the Unwritten Four generic, one green, one blue, one red legendary creature - Spirit Dragon - 7/7 - Mythic Rare Flying, trample Whenever Ureni enters or attacks, look at the top eight cards of your library
We cant run too many due to the hungry mana requirements of a four-five color deck, but Ive included: Field of the Dead Scavenger Grounds Maze of Ith Kor Haven Reliquary Tower Alchemists Refuge (plus Leyline of Anticipation!) Field of Ruin Bojuka Bog These all answer various problems or help us gain advantage
Whenever you cast a Dragon creature spell from your graveyard, it gains "When this creature dies, exile it." Legendary Creature - Lizard Warlock Ramp (CTRL to add secondary) Removal Winnowing Convoke (Your creatures can help cast this spell