Their effects are balanced around the Pendulum mechanic, with the Pendulum Summon providing easy access to Tribute material each turn
These can range from providing additional mana to creatures, drawing extra cards, or conferring strategic advantages that significantly influence the course of the game
One strong one uses Lurrus of the Dream-Den, Phyrexian Altar, and Kaya's Ghostform to sacrifice and recur Lurrus infinitely for infinite death, ETB, and cast triggers
Surprisingly, we have a ton of interaction in the deck already due to these coin flip cards, with plenty of creature removal and even some lockdown pieces
It plays well into much of the meta, with a strong psychic type attacker in Mewtwo to handle Lucario and Dragapult, and Team Rocket's Articuno to wall Alakazam