James Wong

Street folk call them "spire mice," but behind the mockery is an unspoken envy of the ledgewalkers' skill at avoiding harm.

Silhana Ledgewalker

Silhana Ledgewalker can't be blocked except by creatures with flying.
Silhana Ledgewalker can't be the target of spells or abilities your opponents control.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)
This creature can't be blocked except by creatures with flying.

Chronozoa

Flying
Vanishing 3 (This permanent comes into play with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Chronozoa is put into a graveyard from play, if it had no time counters on it, put two tokens into play that are copies of it.

Flying
Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When this creature dies, if it had no time counters on it, create two tokens that are copies of it.

Reality Acid

Enchant permanent
Vanishing 3 (This Aura enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When this Aura leaves the battlefield, enchanted permanent's controller sacrifices it.