Medusa Ritual Card

[FateTheSeer]

Heyas, this is a brand new card for my old Medusa archtype, I figured it would be fun to create a ritual monster as I haven't created one for sooooooooooo long and I used a ritual monster for the first time in ages the other day so I had the idea for this new card and yes its effect is similar to Herald of Perfection, but its so hard to come up with an original card effect nowadays, all you can do is come up with a new variation of it, anyways please let me know ways that these cards can be improved also any grammar or spelling mistakes, thanks in advance <3

[center][img]http://i.imgur.com/t0xoF.jpg[/img] [/center]
[center]Lore:[/center]
[center]You can Ritual Summon this card with "Athenas Rage". When a monster is Summoned to your Oppenents Field, place a Stone Counter on that monster, During either player's turn, when your opponent activates a Spell Card, Trap Card, or monster effect: You can send Remove one Stone Counter from your Opponents Field and send one card from your hand to the Graveyard; negate the activation, and if you do, destroy it.[/center]

[center][img]http://i.imgur.com/QfQnc.jpg[/img][/center]
[center]Lore:[/center]
[center]This card is used to Ritual Summon "Medusa, Victim of Athenas Fury". You must also Tribute monsters whose total Level Stars equal 8 or more from the field or your hand. Spells, Traps, and card effects cannot be activated in response to this card's activation.[/center]