Counter vs Triggered Ability You can also counter triggered abilities, although the card must specifically say it can counter them
If you do, Thief of Existence gains When this creature leaves the battlefield, target opponent draws a card. Trickster's Elk Two generic, one green Enchantment creature Elk 3/3 Bestow: one generic, one green (If you cast this card for its bestow cost, it's an Aura spell with enchant creature
You cannot Special Summon the turn you activate this card, except Psychic monsters
It is unclear to me if Magmatic Hellkite will be good enough on its own, or will need to be played in a land destruction focused strategy

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