It also ranks among the strongest Trafalgar Law cards out there
The reason is that suspend replaces the act of casting a card, and you can't convoke the alternate cost of exiling it from your hand
Ill list a number of different ways you can incorporate the graveyard into your builds, regardless of the color(s) or strategy
If they don't, you may copy that spell
Dreadhorde Invasion, Battle for Bretagard, Felidar Retreat, Sigil of the Empty Throne and Anikthea, Hand of Erebos herself all help your board go wide, while cards like Miraris Wake, Boon of the Spirit Realm, and Heliod, God of the Sun can make them stronger
Having a list of the "best" of them feels almost dismissive from that perspective, when you could be looking at half of a pairing with a mystery on the other side for you to solve