yugioh dragon trap cards Yu-Gi-Oh! - Thunder Discharge - SOFU-EN073 - Soul Fusion - Unlimited Edition Single Card Dragon's Bind | Yu-Gi-Oh! Wiki

This has two options, and it's here for Khans, which makes four Green mana each of your turns and pays for itself in a turn cycle

Moraug, Fury of Akoum Lets bring the fury with Moraug, Fury of Akoum

Theres Dovins Acuity (aka Information Campaign), a weaker twist on Disinformation Campaign that nevertheless can have an entire deck built around it

Im also a big fan of Nashi, Moon Sages Scion, though that card leans harder on combat mattering, some variance, and you having some life to play with

That makes it much easier to double-spell on an opponents turn if thats a trigger you're looking for

Is getting roughly 2.5x the value on half of your planeswalkers worth paying double for your box (assuming you can find a Japanese box for a reasonable price)