Flying
Converge — Skyrider Elf enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.

Flying
At the beginning of combat on your turn, you may pay . When you do, put a +1/+1 counter on another target creature you control, and that creature gains flying until end of turn.

Vigilance
: Reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put it into your hand.

This spell can't be countered.
Choose a nonland card name. Search target opponent's graveyard, hand, and library for any number of cards with that name and exile them. Then that player shuffles their library.

Whenever you sacrifice a permanent, Slaughter-Priest of Mogis gets +2/+0 until end of turn.
, Sacrifice another creature or an enchantment: Slaughter-Priest of Mogis gains first strike until end of turn.

Gain control of target creature. Untap that creature. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.

Enchant creature
Enchanted creature has fear. (It can't be blocked except by artifact creatures and/or black creatures.)
Whenever enchanted creature deals combat damage to an opponent, you may draw a card.

Whenever a Saproling you control dies, Slimefoot, the Stowaway deals 1 damage to each opponent and you gain 1 life.
: Create a 1/1 green Saproling creature token.

Forestwalk (This creature can't be blocked as long as defending player controls a Forest.)

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Scavenge (, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)

Flash
Whenever you cast another spell that has flash, you draw a card and each opponent loses 1 life.

Slivers you control have flying and "Whenever you draw a card, this creature deals 1 damage to any target" and ": Draw a card."

Eldrazi you control are Slivers in addition to their other types.
Slivers you control have devoid and annihilator 1.
: Create a 1/1 colorless Eldrazi Sliver creature token. It has "Sacrifice this creature: Add ."

Sliver creatures you control have indestructible. (Damage and effects that say "destroy" don't destroy them.)

All Sliver creatures get +1/+1 for each other Sliver on the battlefield.

: Search your library for a Sliver card, reveal that card, and put it into your hand. Then shuffle your library.
: Gain control of target Sliver. (This effect lasts indefinitely.)

: Create a 1/1 colorless Sliver creature token.

Whenever another artifact enters the battlefield under your control or another artifact you control leaves the battlefield, you may pay . If you do, target player loses 1 life and you gain 1 life.

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Scavenge (, Exile this card from your graveyard: Put a number of +1/+1 counters equal to this card's power on target creature. Scavenge only as a sorcery.)