(The IVs and ranges in brackets are for lvl 45).
"G" stands for "Guaranteed".

Maxie's Mightyena (42)
IV					Take Down
-0					28-34
-1-4 (-0)			28-33
-5-9 (-1-5)			27-32
-10-18 (-6-13)		26-31
-19-27 (-14-22)		25-30
-28-31 (-23-29)		24-29
(-30-31)			23-28

0-4 (0)				25-30
5-9 (1-5)			24-29
10-18 (6-13)		23-28
19-28 (14-22)		22-27
29-31 (23-31)		22-26

+0					23-28
+1-7 (+0-2)			22-27
+8-16 (+3-11)		22-26
+17-27 (+12-22)		21-25
+28-31 (+23-29)		20-24
(+30-31)			19-23

Tabitha's Camerupt (36)
IV					Take Down
-0 					23-28
-1-7 (-0-2)			22-27
-8-16 (-3-11)		22-26
-17-27(-12-20)		21-25
-28-31 (-21-31)		20-24

0-2					21-25
3-11 (0-7)			20-24
12-20 (8-16)		19-23
21-31 (17-27)		18-22
(28-31)				17-21

0-2					19-24
3-11 (+0-7)			18-22
12-23 (+8-18)		17-21
24-31 (+19-29)		17-20
(+30-31)			16-19

Tabitha's Golbat (40)
IV					Wing Attack
0-7 (-0-2)			25-30			
-8-18 (-3-13)		23-28
-19-29 (-14-25)		22-27
-30-31 (-26-31)		21-25

0-7 (0-2)			22-27
8-23 (3-18)			21-25
24-31 (19-31)		20-24

+0-4 (+0)			21-25
+5-13 (+1-11)		20-24
+14-31 (+12-27)		18-21
(+28-31)			17-21

IV					Bite
-0-11 (-0-6)		14-17
He'll never use bite on Swampert from -12 (-7) IV or more

Maxie's Crobat (43)
IV					Wing Attack
-0-4 (-0)			35-42
-5-13 (-1-9)		34-40
-14-23 (-10-18)		33-39
-24-29 (-19-25)		31-37
-30-31 (-26-31)		30-36

0 					33-39
1-7 (0-2)			31-37
8-16 (3-11)			30-36
17-27 (12-22)		28-34
28-31 (23-31)		28-33

+0-7 (+0-2)			28-34
+8-16 (+3-11)		28-33
+17-29 (+12-25)		26-31
+30-31 (+26-31)		25-30

Tabitha's Mightyena (38)
IV					Take Down
-0-2 				23-28
-3-9 (-0-5)			22-27
-10-18 (-6-13)		22-26
-19-27 (-14-22)		21-25
-28-31 (-23-31)		20-24

0-4	(0)				21-25
5-12 (1-9)			20-24
13-23 (10-18)		19-23
24-31 (19-29)		18-22
(30-31)				17-21

+0-4 (+0)			19-23
+5-13 (+1-9)		18-22
+14-27 (+10-22)		17-21
+28-31 (+23-31)		17-20

Swampert ranges:
IV					Mightyena1 (118)	Golbat (114)		Crobat (133)	Mightyena2 (105)

-29-31				97-115 (107-126)	79-93 (85-100)		67-79 (72-85)	97-115 (G)

0-1					95-112 (102-121)	76-90 (81-96)		64-76 (69-82)	95-112 (102-121)
2-3 (2-4)			96-114 (102-121)	77-91 (82-97)		66-78 (69-82)	96-114 (102-121)
4-6	(5-6)			97-115 (104-123)	77-91 (84-99)		66-78 (71-84)	97-115 (104-123)
7-8					97-115 (105-124)	79-93 (84-99)		67-79 (72-85)	97-115 (G)
9-10				99-117 (107-126)	79-93 (85-100)		67-79 (72-85)	99-117 (G)
11-12 (11-13)		100-118 (107-127)	79-94 (86-102)		68-81 (73-87)	100-118 (G)
13-15 (14-15)		100-118	(110-130)	81-96 (87-103)		68-81 (74-88)	100-118 (G)
16-17 				102-121 (110-130)	82-97 (89-105)		69-82 (76-90)	102-121 (G)
18-19				104-123 (112-132)	84-99 (90-106)		71-84 (76-90)	104-123 (G)
20-21				105-124 (113-133)	84-99 (90-106)		72-85 (77-91)	G
22-24				107-126 (114-135)	85-100 (91-108)		72-85 (77-91)	G
25-26				107-126 (114-135)	86-102 (91-108)		73-87 (79-93)	G
27-28				107-127 (115-136)	86-102 (92-109)		74-88 (79-94)	G
29-31				109-129 (117-130)	87-103 (94-111)		74-88 (79-94) 	G
(31)				(G)					(94-111)			(81-96)			G

+0-1				104-123 (112-132)	84-99 (90-106)		71-84 (76-90)	104-123 (G)
+2-3 (+2-4)			105-124	(113-133)	94-99 (90-106)		72-85 (77-91)	G
+4-6 (+5-6)			107-126 (114-135)	95-100 (91-108)		72-85 (77-91)	G
+7-8				107-126 (114-135)	86-102 (91-108)		73-87 (79-93)	G
+9-10				107-127 (117-138)	86-102 (92-109)		73-87 (79-94)	G
+11-12 (+11-13)		109-129 (G)			87-103 (94-111)		74-88 (81-96)	G
+13-15 (+14-15)		110-130 (G)			89-105 (96-114)		74-88 (82-97)	G
+16-17				112-132 (G)			90-106 (97-115)		76-90 (84-99)	G
+18-19				114-135 (G)			91-108 (97-115)		79-93 (84-99)	G
+20-21				115-136 (G)			92-109 (99-117)		79-93 (85-100)	G
+22-24				117-138 (G)			92-109 (99-117)		79-94 (85-100)	G
+25-26				Guaranteed			94-111 (100-118)	79-94 (86-102)	G
+27-28				Guaranteed			95-112 (102-120)	81-96 (86-102)	G
+29-31 (+29-30)		Guaranteed			95-112 (102-121)	81-96 (87-103)	G
(+31)				G					(101-121)			(87-103)		(fucking G)