[Edit] My guess is that Jirachi Prisms ability still works, because it states, before you put it in your hand, while Barbaracle is, instead of your hand. If Jirachi Prism heads for the bench, Barbaracle doesnt say instead of the bench, meaning it should go through
I'm not allowed to buy singles until I'm 75% of the way done
There are a myriad of cards with myriad and other single-turn copy effects, so Phyrexian Altar and Ashnod's Altar are here to turn the tokens you need to sacrifice anyway into mana
Attack negation/prevention - You can only 'tag out' a "Gladiator Beast" when it "attacks or is attacked", therefore, any Spell, Trap, or Monster Effect that lets you negate a monster attack would prevent the opponent from tagging out their "Gladiator Beasts".
One spectacular example sold in a 2021 PWCC auction for $5,300, a massive jump from our previous entrys $1,899
Getting a cheap equipment as it enters makes your early turns a lot smoother, and trample means that equipment turns into real damage instead of just looking cute on the board