Once you've used Sleep Mode's On Play effect to place [BT13-091 Belphemon: Rage Mode] on top of its digivolution cards, awaken to Rage Mode at the end of your opponent's turn
Even with the newest iterations that boast added mechanics such as Pendulum, Xyz, Synchro, and others, these are usually more intimidating than complex, as all it takes is a quick read of their cards to actually get an idea of what they do
Detention Sphere | Illustration by Kev Walker Azorius cards are spells that are blue and white
Though Farfetchd is easy for the opponent to take out, it often deals enough damage to make the loss worthwhile
Effectively, this means the opponent should never have a large field advantage so long as this is somewhere on the field
The cool thing with Revival is that it summons the Immortal simply to use their effects or to prevent opponent attacks, as they cannot inflict battle damage after being summoned by it