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select
s.id, s.age, s.coins_needed, s.power
from
(select w.id, wp.age, w.coins_needed, w.power
from Wands as w inner join Wands_Property as wp on w.code = wp.code) as s
inner join
(select wp.age, min(w.coins_needed) as coins_needed, w.power
from Wands as w inner join Wands_Property as wp on w.code = wp.code
where wp.is_evil = 0
group by wp.age, w.power
order by w.power desc, wp.age desc) as t
on s.age = t.age and s.coins_needed = t.coins_needed and s.power = t.power
order by t.power desc, t.age desc
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select s.id, s.age, s.coins_needed, s.power from (select w.id, wp.age, w.coins_needed, w.power from Wands as w inner join Wands_Property as wp on w.code = wp.code) as s inner join (select wp.age, min(w.coins_needed) as coins_needed, w.power from Wands as w inner join Wands_Property as wp on w.code = wp.code where wp.is_evil = 0
group by wp.age, w.power order by w.power desc, wp.age desc) as t on s.age = t.age and s.coins_needed = t.coins_needed and s.power = t.power order by t.power desc, t.age desc