"during battle between this attacking card and a Defense Positionmonster _, inflict the difference as Battle Damage to your opponent" → "if this card attacks a Defense Position monster, inflict piercing battle damage to your opponent"
"selected as an attack target" → "targeted for an attack"
"attack once again"/"attack twice" → ""make a second attack"
"still treated as a Trap Card" → "also still a Trap Card"
Activation conditions (anything that limits when or how often you can activate a card/effect) are now denoted with a colon " : ".
Activation functions (anything that happens when you activate a card/effect, includes things like costs and targeting) are now denoted with a semicolon " ; ".
Effects that starts a Chain always have a colon or semicolon. The activation of a Spell and Trap Card always starts a Chain.
Built-In Special Summons (other than Synchro or Xyz) are now denoted by parentheses " () " stating the location from which the monster can be Special Summoned.
A or B required?
also, after that
and if you do
The conjunctives "and", "and if you do", "also", "also, after that" and "then" have specific meanings.
In "Do A, then do B", B happens after A. These things happen in sequence, not simultaneously. A is required for B, but NOT vice-versa. If A does not happen, then stop. If B cannot happen, you still do A.
In "Do A and B", both A and B happen simultaneously. BOTH A and B are required. If you cannot do both, then you do nothing.
In "Do A, and if you do, do B", both A and B happen simultaneously. A is required for B, but NOT vice-versa. If A does not happen, then stop. If B cannot happen, you still do A.
In "Do A, also do B", both A and B happen simultaneously. Neither is required for the other to occur.
In "Do A, also, after that, do B", B happens after A. These things happen in sequence, not simultaneously. Neither is required for the other to occur.
Cards with bulleted effects (●) that can be resolved in the same Chain Link specify whether they resolve simultaneously or sequentially (if sequentially, effects are applied in the order they are listed). In these cases, each effect activated resolves independent of the success of the other(s).
The text "(simultaneously)" indicates that the bulleted effects are applied simultaneously (e.g. "Kunai with Chain").
The terms "that target" or "those targets" and "it" or "they" have specific meanings in the resolution of the effect.
"That target" and "those targets" indicate that the targets must still meet the target requirements at resolution.
"Both targets"/"Both those targets" and "all three targets" indicate that all targets must still meet the target requirements at resolution for any of them to be affected.
"It" and "they" indicate that the targets do not need to meet the target requirements at resolution, only when targeted.
Conditions other than target requirements that have to be met during both activation and resolution are specifically noted in a separate sentence after the effect sentence (e.g. "Zombie Master", "Goe Goe the Gallant Ninja").
The phrase "in the Graveyard" indicates that the properties of the card must be checked in the Graveyard (e.g. "Armory Arm"). As such, if the card is not in the Graveyard at that time, there is no longer a reference point and the effect disappears.
Any effect that has "During either player's turn:" (or similar text) is a Quick Effect. Some monsters may indicate in their card text that the effect is a Quick Effect (e.g. "Swift Scarecrow").
Cards that can be activated in response to the activation of either a card or a card effect include "when a card or effect is activated" in their timing (e.g. "Stardust Dragon").
Cards and effects that state "you can only activate this card/effect once per turn/Duel" can be activated again in the same turn/Duel if the activation is negated. Cards and effects that state "you can only use this card/effect once per turn/Duel" cannot be activated again in the same turn/Duel, even if negated.
Effects that prevent monsters from being attacked but cannot prevent the opponent from attacking directly specifically note this (e.g. "The Legendary Fisherman"). However, not all cards that prevent monsters from being attacked allow the opponent to attack directly (e.g. "Command Knight").