Flying Rule 702.9 Glossary

A keyword ability that restricts how a creature may be blocked. See rule 702.9, “Flying.”
Trample Rule 702.19 Glossary

A keyword ability that modifies how a creature assigns combat damage. See rule 702.19, “Trample.”

Rulings (7)

November 10, 2020 Wizards of the Coast
Rakdos's last ability cares about the total life lost, not necessarily what an opponent's life total is compared to what it was at the beginning of the turn. For example, if an opponent loses 5 life and then gains 10 life in a turn, creature spells you cast will cost less to cast.
November 10, 2020 Wizards of the Coast
Damage dealt to a player causes that player to lose that much life.
November 10, 2020 Wizards of the Coast
Rakdos can be put onto the battlefield by another spell or ability even if no opponent has lost life that turn.
November 10, 2020 Wizards of the Coast
Rakdos's last ability won't reduce the cost to cast Rakdos itself. It applies only to creature spells you cast once Rakdos is on the battlefield.
November 10, 2020 Wizards of the Coast
If there are additional costs to cast a creature spell, such as a kicker cost or the commander tax, apply those increases before applying cost reductions.
November 10, 2020 Wizards of the Coast
If an opponent lost life and subsequently lost the game, Rakdos's first ability is satisfied, and its last ability counts that loss of life.
November 10, 2020 Wizards of the Coast
Rakdos's last ability can't reduce the colored mana requirement of a creature spell you cast.

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