And, while Ursula's Lair's secondary ability is some added flavor, it's definitely not pushing this location into playability
Card Name Mana Cost Type Creature Illusion Rarity Mythic Rare rules Text You may have this creature enter as a copy of any creature on the battlefield, except it's an Illusion in addition to its other types and it has "When this creature becomes the target of a spell or ability, sacrifice it." P/T Number 67 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (3/14/2017) Phantasmal Image copies exactly what was printed on the original creature (unless that creature is copying something else or is a token
Players can also have hexproof, and in these scenarios a player with hexproof cant be targeted by spells or abilities, although their creatures and permanents are still able to be targeted
They do this by adding a +1/+1 to the creature after it persisted, giving it undying, or preventing counters from being placed on it at all