Not only have we had Magic products specifically designed for us for over a decade, but Wizards of the Coast (WotC) now has a designated Casual Play Design team led by Melissa DeTora
If anyone remembers me musing over lifegain in cube, they would know that the primary vehicle for the deck type was white/black using lifegain engines to fuel life payment engines and lifegain triggers
There are some serious toys here, especially for artifacts decks
Ajani can let you draw the top card of your deck, give creatures +1/+1 counters and vigilance, or give you an emblem that reads: Whenever you cast a creature or planeswalker spell, target opponent gets two poison counters. A player dies if they have ten poison counters, which means if you do manage to get that emblem, you only need to cast five more spells and the game is over
The best you could abuse this is sacrificing something like a Treasure token for a living weapon like Batterskull or Kaldra Compleat