Parallel version Limited to level 3 of his own class, but has unrestricted access to any "Blessed" cards, and may included up to 5 non-Blessed cards which can seal tokens (with no level restriction)
Sure, each half costs one mana more than the split half, but you can add in interaction in your creature spots or a creature in your interaction slot and then a beater later to close out the game, and you can get both effects for one card
Myriad like on Blade of Selves and mobilize both give you creature tokens that you're supposed to get rid of at your end step, but with no end step, you keep them
Not all of them can be gems, but luckily, extras can be sold as bulk packages for some quick cash
One of Magic's best birds, Baleful Strix is the ultimate 2-for-1, drawing a card now and trading for something later, whether thats a removal spell or another creature