this means that if it's blocked by a smaller creature, the defending player still takes basically "spillover" damage, ie if a 4/3 creature is blocked by a 2/2, the opponent still takes 2 damage
Lore: You can Special Summon this card (from your hand) by banishing 3 Spell Cards from your Graveyard
Now let's turn to card answers
Attack!" When Luna activates that monster's effect, she announces "Spore's effect activates from the Graveyard!" When Luna Summons "Sunny Pixie", she announces "The Tuner Monster, Sunny Pixie!" Most of the time when Luna attacks with that monster, she announces "Attack, Sunny Pixie!" When Luna activates that monster's effect, she announces "Sunny Pixie uses her effect!", followed by "I gain 1000 Life Points!" When Luna Summons "Watapon", she announces "Let's go, Watapon!" Most of the time when Luna attacks with that monster, she announces "Watapon
It's almost the same as an additional Nest Ball in the format