Some of the more traditional creature types, such as [c]Elf[/c], [c]Goblin[/c], and [c]Merfolk[/c], have many cards that encourage you to focus exclusively on one creature type
Elder Gargaroth The only downside to Elder Gargaroth is that it dies to Doom Blade. It needs to attack or block once to provide card advantage, but its a nightmare against aggro and midrange decks because its massive and lets you choose between life, a creature, or a card
Destined on the stack is still a black instant with a converted mana cost of 2, and Lead on the stack is still a green sorcery with a converted mana cost of 4, but Destined to Lead, any time it's not one or the other, is a black and green instant sorcery with a converted mana cost of 6
What set is Emergence Zone from
Unpeeled or MINT is difficult of course, but Near MINT will be available with comparative ease