This is amazing for two totally different situations: You can either use this ability to shut down your opponents powerful monster effects by negating them (at the cost of being indestructible to card effects), or you can use this ability to protect your own monsters from destructive card effects (at the cost of having its effect negated for the rest of the turn)
Weve definitely seen an upgrade in the quality of cards which enchant things over the last decade
Master rule 3 introduced the following terminology: Pendulum Zone Pendulum Monster Pendulum Summon Pendulum Scale And additionally changed Monster Card Zone, Spell & Trap card Zone and Field Card Zone to Monster Zone, Spell & Trap Zone and Field Zone respectviely - Largely changes for the sake of brevity
If player A did not lose at that point, the triggered abilities would then be put on the stack
Additionally, if a card puts a land directly into play, it accelerates your mana development, which is also crucial
A Standard Set means collecting one of each card in the main numbered list (e.g., cards 1 through 94)