If Palooza was a Spell rather than a Trap, or if it Specialed from the GY too, perhaps it would actually be viable, but alas
And Vessel just increases your chances of seeing the right Tenyi's, the card is either dead or a must negate generally speaking
C Common Super Hippo Carnival X SPELL Quick-Play Special Summon 1 "Performapal Hip Hippo" from your hand, Deck, or Graveyard, then you can Special Summon as many "Hippo Tokens" (Beast-Type/EARTH/Level 1/ATK 0/DEF 0) as possible, but they cannot be Tributed, and monsters your opponent controls cannot target monsters for attacks for the rest of this turn, except "Hippo Tokens"
Filters (All by default) Explore Yu-Gi-Oh
Breo, Jean, and Andre are all over here