Typing just one letter/number/character in the shrine makes pure-breed monsters with baseline stats.

Tablet	Monster
A	Ducken
B	Pixie
C	Mogi
D	Naga
E	Arrowhead
F	Octopee
G	Tiger
H	Suezo
I	Monol
J	Gitan
K	Zuum
L	Momo
M	Mew
N	Gitan
O	Gali
P	Mocchi
Q	Raiden
R	Lesione
S	Raiden
T	Mew
U	Mocchi
V	Garu
W	Naga
X	Golem
Y	Raiden
Z	Tiger
[	Mocchi
]	Durahan
(	Momo
)	Garu
a	Pixie
b	Suzurin
c	Tiger
d	Psiroller
e	Ducken
f	Zuum
g	Octopee
h	Lesione
i	Suezo
j	Henger
k	Mocchi
l	Hare
m	Garu
n	Garu
o	Octopee
p	Tiger
r	Mew
s	Psiroller
t	Arrowhead
u	Suezo
v	Golem
w	Octopee
x	Zuum
y	Hare
z	Pixie
!	Octopee
?	Naga
musical note	Pixie
%	Joker
0	Suzurin
1	Mocchi
2	Antlan
3	Suezo
4	Zuum
5	Ducken
6	Antlan
7	Mogi
8	Mew
9	Henger
'	Lesione
"	Suezo
:	Antlan
~	Golem
_	Pixie
,	Mocchi
°	Antlan
,	Zan
·	Hare
+	Mogi
-	Dragon
x	Monol
/	Momo
=	Tiger

Thanks to GoldenBoy & Thorr