Hooks and immediate catches
Sona needs small forward steps to use Q, prepare Power Chord and keep her ADC inside aura range. Hooks punish exactly those small forward steps: one spacing mistake can cancel her entire scaling plan. Blitzcrank, Thresh or Pyke do not need to win every trade; they only need to create enough threat that Sona can no longer poke freely. When she backs off too much, her ADC loses lane pressure, and when she steps up too far, she can die before even using Crescendo.
How the champion adapts. Sona must play behind minions, accept losing some Q poke opportunities and ward side angles before touching the wave. Her goal is not to beat the hook support in lane, but to survive early without giving the catch that accelerates the enemy game.
Hard engage and frontal all-in
Leona, Nautilus and Rakan force Sona to answer very quickly, which attacks her core weakness: she wants to prepare the fight, not absorb it instantly. Before level 5, she has no Crescendo to break the entry. Even afterward, if she is hit first or forced to use her ultimate only to survive, her team loses the control tool that was supposed to secure the objective. These matchups are dangerous because every ward placement, lane return and pushed wave becomes a possible instant fight.
How the champion adapts. Sona should keep Exhaust for the main engage, position even farther back than her ADC if needed and avoid contesting a wave while enemy crowd control is available. After level 5, Crescendo should often answer the engage rather than look for an ambitious start.
Sustain and lane neutralization
These supports do not always destroy Sona directly, but they reduce her ability to create a real lead through poke. If Soraka, Nami, Lulu or Seraphine absorb small trades and keep their duo healthy, Sona cannot simply win lane through repeated Q casts. The matchup becomes a value race around mid game: who protects their carry better, who holds the better objective tool, who forces the other to spend spells too early. For Sona, this is less lethal than a hook, but much more subtle: she may feel like she is scaling freely while creating no real advantage.
How the champion adapts. Sona should look for quality over quantity: the right Power Chord, the right item timing and the right Crescendo around an objective. If she only spams to match enemy sustain, she risks running out of mana without gaining useful pressure.