mtg cards like act of treason : Toys & Games and each night attendance at the Juri Revue increases. Commander Players Are Using These

This lovely card features the bestest furry cats and dogs lounging and playing in a pristine field of green grass and flowers

Both of those are positive abilities to help grow her loyalty to your cause, so you don't need to run back and forth between a plus ability you don't want and a minus one you do

For instance, Rhonas the Indomitable only costs 1 green mana with the reduction, and has fantastic stats and abilities with a negligible drawback

Starting with products like the Portal trilogy and Starter 99/00 , these were marketed to bring new players into the game

In EDH, think Senseis Divining Top, Scroll Rack, and the many cards that let you scry as part of spell resolution