Read M-B as a change log
A new regulation changes more than legal names. New attackers alter defensive benchmarks; support Pokémon alter lead selection; and new items create choices in slots that previously had an obvious answer. Compare your M-A team against the new roster before rebuilding from scratch.
New Mega choices need a real trade-off
Blaziken-Mega, Swampert-Mega and Metagross-Mega offer distinct pressure, but a Mega must hold its Mega Stone. Judge one by typing, ability, speed, damage profile and the partners it needs, not by combinations with items it cannot hold. Non-Mega additions such as Grimmsnarl and Gholdengo can carry utility items that a Mega cannot.
M-B Pokémon to evaluate
These additions ask different questions in team preview.
Notable item options
Update benchmarks before declaring a matchup solved
Life Orb improves the damage of damaging attacks at the cost of recoil. Light Clay supports longer screen turns. Wide Lens reduces risk from imperfect accuracy without making a move perfect. Each is useful only when it solves a specific problem.
Use a real calculation for important benchmarks: targeting, STAB, weather, screens, abilities, type effectiveness and the random damage range all matter.
Questions for an M-B rebuild
- Which new Pokémon changes my lead?
- Has a new item shifted a key knockout range?
- Does my Mega slot still fit the expanded field?
- Can my team operate if its first speed-control plan is denied?