Credit: Wizards of the Coast Goblin Airbrusher FromTheShire: Since it doesn't enable itself I don't think this makes the cut in the list mentioned previously, but for Commander this is an excellent ramp piece in a sticker deck
The 90s: Furnace of Rath Lets start with the very first damage doubling enchantment: Furnace of Rath
Even better, Tortoise discounts the cost of filter lands like Twilight Mire and Sungrass Prairie, allowing you to actually net mana from those lands
Gaining haste is a big deal though, and Zetalpa can end the game quickly with only three attacks, not to mention if you have any Angel of Inventions on the battlefield that pump its power and toughness
Need a load of creatures quickly
Additionally, this card's ability could double as a sneaky win condition, especially when paired with counter doublers like Doubling Season