Equipped creature gets +2/+0 and has afflict 1. (Whenever it becomes blocked, defending player loses 1 life.)
Equip( : Attach to target creature you control. Equip only as a sorcery.)
7/14/2017 If a creature has multiple instances of afflict, each triggers separately.
7/14/2017 If multiple creatures block a creature with afflict, afflict triggers only once.
7/14/2017 Afflict causes the defending player to lose life; it’s not damage or combat damage.
7/14/2017 If a creature is attacking a planeswalker, that planeswalker’s controller is the defending player.
7/14/2017 Afflict resolves before combat damage is dealt. If this loss of life brings a player to 0 life or less, that player loses the game immediately. A blocking creature with lifelink won’t deal combat damage in time to save that player.