You cant jam these into any old deck in the format, but in the right deck that are insanely strong
Search your library for a green creature card and put it onto the battlefield
negate the activation, and if you do, destroy that monster, also whenever you take battle damage this turn, the damage taken becomes half your LP at that time
By percentage: Nanjamo (Iono) SAR at +116%, Pikachu AR (VSTAR Universe) at +111%, Pikachu ex SAR (MEGA Dream ex) at +89%
(All 6 Over Frames are older cards being reprinted.) RV01-JP001 Funny Dark Rabbit Level 4 DARK Beast Effect Monster ATK 1100 DEF 1500 (1) After this card is Normal or Special Summoned, during your Main Phase this turn, you can Normal Summon 1 monster that mentions Toon World in addition to your Normal Summon/Set (you can only gain this effect once per turn)
You exile cards until you get to a nonland card and check if it has the appropriate mana value