理由
Jarvan is skill because you both want to start fights but differently: he traps (Cataclysm) and forces, you neutralize a target and absorb. If Jarvan finds a good angle on your carry, you can lose before having value; if you punish his entry, his engage becomes suicide.
レーン戦への影響
At objectives it’s volatile: Jarvan loves corridors and fast engages. If you arrive late or without flank vision, he can out-tempo you. In practice it impacts wave priority, reset timing, and river/objective access. A single tempo mistake can lose initiative for the next sequence.
立ち回り方
Prioritize flank vision + readiness. When Jarvan shows E-Q, often taunt the real damage source following, not necessarily Jarvan himself. If your carry is the target, your job is making Cataclysm unplayable: peel, reposition, then look to initiate.