I really love the common Orbs of Dragonkind, which nicely help ramp us towards our more expensive Dragons while providing a nice bonus effect for Dragon spells particularlyred provides haste, blue lets you scry, and the green one makes your Dragon a bit bigger and gives it hexproof until your next turn, making it more likely to avoid pinpoint removal for a while
English cards are generally worth more than Japanese cards, so you may make more money if you keep collecting them
Entropic Uprising supports this heavily by running tons of Wheels (Runehorn Hellkite, Dragon Mage, Wheel of Fate, Windfall, Ancient Excavation, Whispering Madness) and then a bunch of ways to take advantage of all those discarded cards / filled graveyards with stuff that reward you for your opponents discarding (Nath of the Gilt-Leaf, Sangromancer, Waste Not) or for having filled graveyards (Guiltfeeder, Spellheart Chimera, Worm Harvest, Ghastly Conscription)
Grave Pact + Dictate of Erebos Grave Pact gives sacrifice decks an incredible amount of board control
As well as possible
