Seventh Tachyon (MZTM-EN016) - Maze of the Master 1st Edition Number_CRMS-EN094 you can select and activate

you can select and activate 1 of the following effects:

All monsters with an ATK of 1500 or more cannot attack

also it can activate the 2nd effect listed above as if it were "Therion "King" Regulus"

• Ritual Summon 1 Reptile Ritual Monster from your hand

This card gains 1000 ATK for each Continuous Trap Card in your Graveyard

Seventh Tachyon (MZTM-EN016) - Maze of the Master 1st Edition Number_CRMS-EN094 you can select and activateTypenull Normal Spell AttributeSPELL Card TextReveal 1 "Number" Xyz Monster in your Extra Deck that has a number between "101" and "107" in its name; add 1 monster from your Deck to your hand with the same Type or Attribute as that monster, and the same Level as that monster's Rank, then place 1 card from your hand on top of the Deck, also for the rest of this turn after this card resolves, you cannot Special Summon from the Extra Deck, except Xyz