With the built-in capability for skulk and a full temptation of the Ring, Frodo becomes a sneaky win condition whether opponents have infinite life, a million big blockers, and they don't need to play Fires of Mount Doom (but massive flavor points if they do)
This means an extra land drop, another attack phase, and a whole new untap
Creatures with Shroud can't be targeted by spells or abilities controlled by any players, not just by your opponents
You can only target a single player, and its a bad card if youre in danger, but most pure mill cards are made that way
In most TCGs, milling refers to cards being put from a deck directly into the discard pile
It costs one mana to exile a target creature, and the only downside is that the creatures controller gets to put a basic land into play