Leviathan costs a lot of mana, and then it punishes your mana base if you want to, you know, use it
Marchesa, the Black Rose [Wizard]: It's not as big as it would need to be for you to use dethrone on whoever has the best board position, but if one of your opponents has a lot of life and your creatures are stronger, you can swing and all of your creatures have dethrone
If this happens, Ral, Leyline Prodigy won't have any loyalty counters on him and will subsequently be put into his owner's graveyard
Each time you equip a creature with more keywords, you get more value out of the mana you invested in casting and activating your equipment
This one serves the same purposes, and is especially scary being also a better Disciple of the Vault and another redundant aristocrat drainer