For cards like Clay-Fired Bricks and Invasion of Vryn, simply getting an effect and leaving behind something to blink or sacrifice is good enough
They provide a variety of utilities: "Sorath" being able to Summon a monster from either GY to the user's field, then perform an additional Fusion Summon by banishing monster(s) from the user's field or GY, "Baybarron" searching either one of two specific "Invoked" support cards, "Oceanus" being a one-sided "Dimensional Fissure", "Dee Anima" being able to destroy monsters or Spell/Traps, then can tag itself out with an "Aliester" monster from the Deck to negate an effect activated from the GY
To put it in another way, it's basically assured to hit the graveyard within three seconds after being cast
An important clarification, Platinum Tier 1 is the official terminology used in Master Duel for their ranking placement
As Teval also makes tokens, both tokens can be tapped for mana via Insidious Roots