Even combo plays little pure card draw any more, it may well have the odd symmetrical draw seven effect but these are usually for the ability to get back spent combo cards should the game go on a little longer than desired
Crystal Barricade discourages early opportunistic attacks, stops burn kills in their tracks, and also blanks reds mass removal spells, like Blasphemous Act
As a result, it's very possible that a meaningful number of casual players simply don't know about cards like Burgeoning until they see the cards spoiled for Conspiracy 2 or Commander 2016
I get that this event is partly a promotion for the new Detective Pikachu video game, but Im getting pretty sick of seeing local game stores left out of Pokemon promotions
The basic idea is that we get to play a ton of cards that are good against the "big three" decks of Standard to disrupt our opponent
To help with this, there are several removal-based enchantments that build toward that end