Goblin Guide While it's of no use in EDH, a killer combination of haste and 2/2 statline for one mana makes Goblin Guide a historically excellent Modern card
A few other notable variants include Malevolent Rumble, Winding Way, and Grisly Salvage
The fairest trade possible would be an even exchange, like $5 worth of cards for $5 worth of cards, even if that means one player trades a single $5 card for two cards that cost $2.50 each
It lives on in all sorts of Commander decks today, like enchantment decks and the obvious dog typal
Theres something to be said for shuffling it up and playing some games at lunch or before I go on duty for my university
That lets you pull off some immediate emblems with Nissa, Vital Force and Garruk, Cursed Huntsman, to name a few walkers Carth pairs well with