Gladiator Beast has two advantages over other backrow strategies
Well head straight into it with Unlimited: Savannah EX, NM Tropical Island - PL Bayou - PL Badlands PL Next up are Foreign Black Bordered as well as Foreign White Bordered in various languages: FBB Underground Sea - PO, PL (Italian) Taiga - PO (Italian) Tundra - LP (German) Savannah - GD, NM (German) Badlands - PL (German) Plateau - LP (German) Scrubland - PL (German) FWB Underground Sea - GD (German) Badlands - PL, LP (Italian) Scrubland - GD (Italian) Savannah - LP (Italian) Bayou - LP (French) The biggest chunk of Dual Lands comes of course again from Revised

That said, the cards I loved the most from Yugioh were the big juicy 'pay life' cards, stuff like Mirror Wall could be devastating (better than Mirror Force if you have a reasonable board!), Solemn Judgement was insane, both were cards people in my meta hated because you paid life (they never noticed that Mirror Wall was a Trap card or something idk, I had played Magic before at least), these were among my favorite cards, at least I got my Judgement really easily, they thought it was a terrible card, I mean, half your life for a better Force of Will, who would play THAT poop tier card (I obviously would lol)
If this card is Synchro Summoned: You can activate 1 of these effects
If you have imperm, wait until their monster activates its effect banishing from the graveyard before you negate