magic the gathering - indestructible?

Question

when you equip a creature with shield of kaldra,if equiped creatures health would be put below 0, is then that creature destroyed,it shouldnt be because it says that lethal damage doesn't destroy it???

Answer 1

When an indestructible creature is dealt lethal damage it is not destroyed because it CAN'T be destroyed by lethal damage or destroy effects. If an indestructible creature's toughness goes to 0(through cards like Hideous Laughter, Mutilate, Sudden Death, etc) then it will die just like any other creature and go to the graveyard.

Here's the official word on indestructible(from the Darksteel FAQ):
"Indestructible" is not a keyword ability. It's just a word with a specific English meaning that's used as part of a permanent's abilities, like "unblockable." When an effect states that "[this permanent] is indestructible," it's stating a quality about that permanent, not giving it an ability. The official rules for indestructible (from the glossary of the Comprehensive Rules) are as follows:

Indestructible
If a permanent is indestructible, rules and effects can't destroy it. Such permanents are not destroyed by lethal damage and they ignore the lethal-damage state-based effect (see rule 420.5c). Rules or effects may cause the permanent to be sacrificed, put into a graveyard, or removed from the game.

Darksteel Brute 2
Artifact
Darksteel Brute is indestructible. ("Destroy" effects and lethal damage don't destroy it.)
3 : Darksteel Brute becomes a 2/2 artifact creature until end of turn.

-If an indestructible creature has 0 toughness, it will be put into its owner's graveyard. Being indestructible can't prevent this.

-Damage accumulates on indestructible creatures, and that damage is removed during the cleanup step.

-Lethal damage is defined as an amount of damage greater than or equal to a creature’s toughness. Even though an indestructible creature isn't destroyed by lethal damage, that definition is still used for things like assigning trample damage
.
-If a creature with lethal damage on it stops being indestructible, it's destroyed the next time state-based effects are checked.

-Being indestructible stops only effects that would destroy the permanent, including destruction due to lethal damage and destruction that doesn't allow regeneration. An indestructible permanent can be removed from the game, returned to a player's hand, put into a graveyard, or sacrificed.

-You can use a regeneration effect on an indestructible permanent, but since that permanent can't be destroyed, the effect will never apply.

Answer 2

when shield of kaldra is equipped to any creature it becomes indestructible. There is only three ways to get rid of it,1.bounce it back to their owners hand,2,remove it from the game,or 3.give it negatives. Damage can not destroy it and neither can destroy effects.