Despite that, I dont think I spent enough time highlighting how you will almost always trade up on mana with this card and at worse be trading even
House, the Deck of Many Things is an ok card
These points give you a clear idea of why some cards become harder to find and gain stronger long-term value

Rime #31 - Lapras V #32 - Lapras VMAX #33 - Suicune #34 - Feebas #35 - Milotic #36 - Kyogre #37 - Galarian Darumaka #38 - Galarian Darmanitan #39 - Sobble #40 - Drizzile #41 - Inteleon #42 - Chewtle #43 - Drednaw #44 - Cramorant #45 - Arrokuda #46 - Barraskewda #47 - Snom #48 - Frosmoth #49 - Eiscue #50 - Dracovish #51 - Arctovish #52 - Rotom #53 - Tapu Koko #54 - Yamper #55 - Boltund #56 - Boltund V #57 - Toxel #58 - Toxtricity #59 - Toxtricity V #60 - Toxtricity VMAX #61 - Pincurchin #62 - Morpeko #63 - Dracozolt #64 - Arctozolt #65 - Clefairy #66 - Clefable #67 - Galarian Ponyta #68 - Galarian Rapidash #69 - Gastly #70 - Haunter #71 - Gengar #72 - Galarian Corsola #73 - Galarian Cursola #74 - Sigilyph #75 - Dedenne #76 - Sinistea #77 - Polteageist #78 - Hatenna #79 - Hattrem #80 - Hatterene #81 - Milcery #82 - Alcremie #83 - Indeedee #84 - Indeedee V #85 - Dreepy #86 - Drakloak #87 - Dragapult #88 - Dragapult V #89 - Dragapult VMAX #90 - Galarian Farfetch'd #91 - Galarian Sirfetch'd #92 - Galarian Yamask #93 - Galarian Runerigus #94 - Rolycoly #95 - Carkol #96 - Coalossal #97 - Silicobra #98 - Sandaconda #99 - Clobbopus #100 - Grapploct #101 - Falinks #102 - Falinks V #103 - Stonjourner #104 - Koffing #105 - Galarian Weezing #106 - Spinarak #107 - Ariados #108 - Crobat V #109 - Crobat VMAX #110 - Galarian Zigzagoon #111 - Galarian Linoone #112 - Galarian Obstagoon #113 - Croagunk #114 - Toxicroak #115 - Trubbish #116 - Garbodor #117 - Yveltal #118 - Hoopa #119 - Nickit #120 - Thievul #121 - Impidimp #122 - Morgrem #123 - Grimmsnarl #124 - Eternatus V #125 - Eternatus VMAX #126 - Galarian Meowth #127 - Galarian Perrserker #128 - Galarian Stunfisk #129 - Honedge #130 - Doublade #131 - Aegislash #132 - Corviknight #133 - Cufant #134 - Copperajah #135 - Duraludon #136 - Zacian #137 - Zacian V #138 - Zamazenta #139 - Zamazenta V #140 - Ditto V #141 - Ditto VMAX #142 - Minccino #143 - Cinccino #144 - Ducklett #145 - Swanna #146 - Bunnelby #147 - Oranguru #148 - Skwovet #149 - Greedent #150 - Rookidee #151 - Corvisquire #152 - Wooloo #153 - Dubwool #154 - Dubwool V #155 - Cramorant V #156 - Team Yell's Cheering Towel #157 - Scoop Up Net #158 - Quick Ball #159 - Evolution Incense #160 - Hyper Potion #161 - Turbo Patch #162 - Capacious Bucket #163 - Tool Scrapper #164 - Ordinary Rod #165 - Rare Fossil #166 - Metal Saucer #167 - Rotom Bike #168 - Rusted Sword #169 - Rusted Shield #170 - Cape of Toughness #171 - Air Balloon #172 - Bird Keeper #173 - Piers #174 - Professor's Research #175 - Ball Guy #176 - Boss's Orders #177 - Marnie #178 - Rose #179 - Turffield Stadium #180 - Training Court #181 - Glimwood Tangle #182 - Rose Tower #183 - Heat Energy #184 - Speed Lightning Energy #185 - Horror Energy #186 - Hiding Energy #187 - Aurora Energy #188 - Capture Energy #189 - Twin Energy #190 - Powerful Energy #191 - Cara Liss #192 - Gym Trainer #193 - Bird Keeper #194 - Piers #195 - Skyla #196 - Ball Guy #197 - Pok Kid #198 - Marnie #199 - Rose #200 - Rowlet #201 - Dartrix #202 - Decidueye #203 - Grookey #204 - Thwackey #205 - Rillaboom #206 - Blipbug #207 - Dottler #208 - Orbeetle #209 - Gossifleur #210 - Eldegoss #211 - Applin #212 - Flapple #213 - Appletun #214 - Scorbunny #215 - Raboot #216 - Cinderace #217 - Sizzlipede #218 - Centiskorch #219 - Galarian Mr

:) To answer your question: No, the card acts like "Gladiator Beast's Comeback", where you can use the first effect even if you control no monsters, but gets less useful as you fill your field up with monsters
Well, wants to abuse Agathas Cauldron and generate infinite mana using Sleep-Cursed Faerie and Kami of Whispered Hopes