Once per turn, if you control no monsters: You can Special Summon 1 "Gradius" from your hand or GY, and if you do, it gains 800 ATK
I will most likely be doing all the ponies, but Twilight seemed like the most challenging so I'm starting there
Equipment is less useful here, since they'll be unequipped when RMS Titanic stops being a creature, but there are other useful tools
Promo Info Tamer Battle Pack 21 CLOSECLOSE P-145 P Digimon Lv.5 Myotismon (X Antibody) Color Purple Form Ultimate Attribute Virus Type Undead/X Antibody DP 8000 Cost 8 Digivolve Cost 1 3 from Lv.4 Digivolve Cost 2 - Upper Text [Digivolve] [Myotismon]: Cost 0 [On Play] [When Digivolving] Delete 1 of your opponent's level 4 or lower Digimon
If you make DPE, make sure to pop their monster after the summon before it can activate its effect to banish from the graveyard
If it's a Synchro then they can banish 3 face-down cards from their opponent's Extra Deck