Is kicker A triggered ability?

Finally, kicker is an optional ability, you do not have to pay the cost if you do not want to. Some kicker abilities cause a targeted triggered ability to go on the stack or has an additional aspect of resolution that targets an object.

Is sacrificing a creature dying?

While a creature being sacrificed isn’t the same as a creature dying, the result of sacrificing a creature normally results in that creature dying. This can change, however, if effects like Rest in Peace prevent them from ever going to a graveyard, though.

Is landfall a keyword?

Landfall isn’t a keyword, it’s an ability word. Slightly different in that the cards with ability words work exactly the same if the actual word is taken off. Every card with landfall has full rules text after it. Wizards doesn’t put ability words onto cards unless the ability word is part of the set.

What happens when you trigger a triggered ability?

Triggered abilities don’t care whether you want them to trigger or not. If the event happens, then the ability triggers, period. Flametongue Kavu will blow itself up when its trigger resolves. Not exactly the smartest creature out there.

What happens when a creature with ” whenever a creature…”?

In attempting to resolve the issue, we tried to look things up, leading to this forum post, which cites Rule 603.6d as proving that Marchesa’s ability should trigger both for herself and for each other creature with +1/+1 counters. Unfortunately, none of us could actually understand Rule 603.6d, aside from this example:

What happens when the artifacts ability triggers twice?

The artifacts ability triggers twice, even though the artifact goes to its owners graveyard at the same time as the creatures. The example certainly seems analogous to me, but without understanding the actual rule, rather than just the example, we weren’t too sure.

Is the destroy Earth Elemental a triggered ability?

The game realizes that the trigger event has occurred and puts the “destroy Earth Elemental if it attacked this turn” ability on the stack. The game looks at the “until end of turn” ability and doesn’t do anything. It isn’t a triggered ability, so there isn’t anything to trigger.