A good combo to use with this card involves "Frequency Magician" using its ability to power up "Crusader of Endymion", followed by using "Crusader's" effect to put a new "Spell Counter" on "Frequency Magician" then removing it to have "Crusader" gain 500 more attack, giving "Crusader of Endymion" a grand total of 1600 bonus ATK points making him a 3500 ATK Beatstick. Following the attack, you can always tune him with "Frequency Magician" to summon a level 6 Synchro Monster like "Explosive Magician" or "Tempest Magician".
You can Special Summon this monster by the effect of "Magician's Circle". It becomes a great beatstick and, if you haven´t normal summoned this turn, after attacking, you can activate this monster's effect.
If You have this card on your side of the field, and you also have "Magical Exemplar" on your side of the field, and it has 2 (or more) spell counters on it, you can activate "Gemini Spark" in order to tribute your "Crusader of Endymion", and destroy one card on the field. Then, because you activated a spell card, the "Magical Exemplar" get 2 more spell counters, and you can activate it's effect and special summon the tributed "Crusader of Endymion" from your graveyard to your side of the field.
Special Summon this card with "Magical Exemplar" to make it easier to get his effect.
You can use this card's effect to put counters on the following cards: