Some blue cards with abilities similar to “Aetherling” (self-protection, evasion, or flexibility):
- “Nezahal, Primal Tide” (hard to remove, draw on spell cast)
- “Torrential Gearhulk” (big body, instant flexibility, flash)
- “Silumgar, the Drifting Death” (hexproof, evasion, hard to deal with)
- “Clever Impersonator” (flexible, can copy anything)
- “Mistfolk” (can phase itself out for protection, older example)
Reason: Each provides evasive or hard-to-remove threats in blue, as “Aetherling” does, though not all have the exact set of abilities.