Sigarda, Herons Grace Sigarda, Heron's Grace gives you and humans you control hexproof, and that can be exploited in human tribal decks
Rather than just having one or two vehicles in the deck, there are 15, meaning you can really focus on how to deploy these artifacts to make the most of them
You can also have the player furthest behind gain the life, so it doesnt really matter anyway
Echo means "At the beginning of your upkeep, if this permanent came under your control since the beginning of your last upkeep, sacrifice it unless you pay [cost]." With Old Fogey, there's no cost listed because in ye olden days it was just the mana cost
I will start out with some honourable mentions
What you want to focus on is that draw trigger: Cast Duskana, draw a bunch of cards, then play more Hare Apparent