Not only does it give your creatures evasion, but it also lets them hit twice as hard
(Technically, Homarids also can't be attached to Old Fogey, but it's really hard to have an Aura or Equipment that's also a Homarid, so Snow-covered plainswalk: Old Fogey can't be blocked if defending player controls a Snow-Covered Plains
No, indestructible creatures are still dealt damage , they just don't die if lethal damage is dealt to them
Many decks lean heavily on non-creature permanents that enable their strategy, and losing those can be just as devastating
Shay Cormac Shay Cormac gets around the issue that deathtouch decks run into with protective abilities like hexproof and indestructible, which would already make it a valuable role-player elsewhere
Some but not all artifact creatures are indestructible if they have that keyword in their text box