Seven life is a ton, at least a turn of damage and more likely two and a three-land boost flows pretty nicely into Ulamog, the Ceaseless Hunger
Today, a massive market has exploded on platforms like Etsy for "Alt-Art" cards and custom tokens
It's only one turn, but it's possible to delay the opponent's turn like the old LANF creatures
Most famously, the Weatherlight Saga, running from 1997-2001, had a tight correspondence between cards and story, with many of the major and, notably, loads of minor story events depicted on the cards
Life at Stake Life at Stake creates an interesting scenario where you and your opponent have to decide how much life you think one of their creatures is worth
(2019-11-12) If a token card is put into a hidden zone, you must use a supplementary token card with a Magic card back to represent it